Select the most appropriate option to fill in blank number 3.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. essential.
Essential is the correct adjective, it describes vitamins and minerals as necessary for health.
The other options: "necessitate" is a verb and doesn’t match the structure; "necessarily" is an adverb, and does not modify "vitamins and minerals" properly.