Questions :

Options :
- bitterest
- strangest
- gloomiest
- kindest
correct answer : d)
Explanation :
The correct answer is option d) i.e. kindest.
Kindest refers to being the nicest.
The sentence talks about how one can appear different from outside and be completely different inside.
A person who may seem to have a rough exterior from the outside can be really opposite i.e. kindest from the inside.