Correct Answer: Philanthropist

Solution : The fourth option is the correct choice.

Explanation: Philanthropist is the most appropriate term, as it specifically refers to someone who has a love for humanity and contributes to the welfare of others through charitable actions.

The meanings of the other options are as follows:

• Philistine refers to a person who is indifferent to or hostile to artistic and cultural values.
• A philologist is a person who studies linguistics and language history.
• A philanderer is a person who engages in casual love affairs or flirtations.

Therefore, the correct answer is philanthropist.