Correct option is A
The correct one-word for the given group of words is (a) Pessimist.
Explanation:
A pessimist is someone who tends to believe that bad things will happen or that the situation will turn out worse. (Hindi: निराशावादी)
Example: A pessimist always sees the glass as half-empty.
Meanings of the given other options:
·
Philanthropist: A person who seeks to promote the welfare of others, especially through donations (Hindi: परोपकारी).
·
Optimist: A person who tends to be hopeful and confident about the future (Hindi: आशावादी).
·
Altruist: A person who cares about the welfare of others (Hindi: परमार्थी).