In the following question, there is a sentence of which some parts have been jumbled up. You are required to rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence and mark the corresponding option.  Researchers found that allergic reactions are brought about (P)  in the bloodstream (Q) in the 1940s, (R) by the liberation of small quantities of a substance called histamine (S)   The correct sequence should be

In the following question, there is a sentence of which some parts have been jumbled up. You are required to rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence and mark the corresponding option.  Researchers found that allergic reactions are brought about (P)  in the bloodstream (Q) in the 1940s, (R) by the liberation of small quantities of a substance called histamine (S)   The correct sequence should be Correct Answer RPSQ

The correct answer is 'RPSQ.'

Key Points

• In this sentence, we can see that there are different parts like Subject, relative clause, helping verb, verb, object1 and continuation of the object.
• While arranging the parts of the passage given in the options, we have to find some grammatical or contextual connections between them, so let’s find out.  
  • The opener will be R as it is showing the time duration "in the 1940s."
  • After this, P will come as it is introducing the subject "researchers."
  • After this, S will come as it is having a preposition "by" which completes the context of the previous part.
  • Q follows S as it is providing a conclusion to the sentence.​
• Thus, forming the basic structure of a sentence.
• ​​Correct sentence: In the 1940s, researchers found that allergic reactions are brought about by the liberation of small quantities of a substance called histamine in the bloodstream.

Additional Information          
 

• Before rearranging parts of the sentence, it is very important to read them carefully.
• It is very important to analyse the use of a determiner and conjunction in such cases.
• This confusion can be eradicated by practising more and more questions of Sentence Jumbles.
   

Hinglish     

• इस वाक्य में, हम देख सकते हैं कि सब्जेक्ट, रिलेटिव क्लॉज, हेल्पिंग वर्ब, वर्ब, ऑब्जेक्ट 1 और ऑब्जेक्ट की निरंतरता जैसे विभिन्न भाग हैं।
• विकल्पों में दिए गए गद्यांश के भागों को व्यवस्थित करते समय, हमें उनके बीच कुछ व्याकरणिक या प्रासंगिक संबंध खोजने होंगे, तो आइए जानें।
  • ओपनर R होगा क्योंकि यह "in the 1940s." समय अवधि दिखा रहा है।
  • इसके बाद, P आएगा क्योंकि यहsubject "researchers" का परिचय दे रहा है।
  • इसके बाद, एस आएगा क्योंकि इसमें preposition "by" है जो पिछले भाग के संदर्भ को पूरा करता है।
  • Q, S का अनुसरण करता है क्योंकि यह वाक्य को निष्कर्ष प्रदान कर रहा है।
• इस प्रकार, एक वाक्य की मूल संरचना का निर्माण।