Question

Fill in the blanks with suitable prepositions:
Vitamin D is essential ________ the growth of bones and teeth and is found ________ fish, liver, oil and milk.

• A. To / at
• B. Of / in
• C. On / with
• D. For / in

Answer 1

The correct option is D For / in

We can determine the correct answer with the help of logic and by eliminating the incorrect answer.

Vitamin D is found inside fish, liver,etc. The preposition the is used to indicate a position within is 'in'. So, 'in' must fill the second blank of the given sentence.

We can thus eliminate options A and C as incorrect answers.

Between options B and D, 'for' is used to indicate the use of something.

The given sentence states the importance of vitamin D. So, 'for' must fill the first blank.

Thus option D is the correct answer.