Which one the following is the singular form of the word Hypothesis?
A
Hyposthesises
B
Hypotheses
C
Hypothisis
D
Hypothesus
Correct Answer: Hypotheses
Hypotheses is the only way to make the noun hypothesis plural. Confusion arises because some mistakenly believe that all nouns ending in s should form a plural that adds es to the end of the word. When a noun ends with is, you need to replace the is with an es to form the plural.