The correct answer is: B. sensitive
The word “sensitive” means “easily affected or influenced by something.” In this case, the man is easily affected by light, so he never leaves the house without sunglasses.
The word “insensitive” means “not easily affected or influenced by something.” This is not the correct answer because the man is easily affected by light.
The word “afraid” means “feeling fear.” This is not the correct answer because the man is not afraid of light, he is just sensitive to it.
The word “immune” means “not affected by something.” This is not the correct answer because the man is affected by light, he just wears sunglasses to protect himself from it.