Select the most appropriate option to fill in blank number 4
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. deficiency.
The sentence is talking about what happens when the body lacks iron. The results mentioned are all symptoms that happen when a person doesn’t have enough iron in the body.
So, the word that fits here must mean "lack of iron."
The word “deficiency” means a lack or shortage of something important, like a nutrient.
Meaning of "Deficiency":
Shortage or lack of something, especially something that the body needs (like vitamins or minerals).
Hence, the chosen option will be correct.