In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select No Error. The tournament (1) will begin (2) on December. (3) No error (4)?

Option 3 : 3

The erroneous part is 3

• ​Let's look at the use of these three prepositions in the context of time:
• Use 'in' to refer to a general, longer period of time, such as months, years, decades, or centuries such as:
  • in April, in 2015, or in the 21st century.
• Use 'on' to talk about particular days, dates, and holidays such as:
  • on Monday, on Memorial day, on Diwali, etc.
• ​For the most specific times, and for holidays without the word “day,” we use 'at' such as:
  • at midnight, at noon, at 7 pm, etc.
• As a longer period of time i.e. December is given, 'in' will be used instead of 'on' in the part given in the 3rd option.
   

​Therefore, the correct sentence will be: The tournament will begin in December.