Choose the most appropriate word from the following to fill in the blank.

Mr Roger is a/an ____ with a die-hard idealism towards life.

optimist

The correct answer is Option (2) → optimist

The sentence states that Mr. Roger has a "die-hard idealism towards life."

Optimist (Noun): A person who tends to be hopeful and confident about the future or the success of something. This aligns perfectly with "die-hard idealism," which implies a strong, unwavering belief in the best or most positive outcomes.

Why the other options are incorrect: 

Pacifist (Noun): A person who believes that war and violence are unjustifiable. This relates to non-violence, not general idealism or hopefulness.

Skeptic (Noun): A person inclined to question or doubt all accepted opinions. This contradicts the "idealism" mentioned.

Pessimist (Noun): A person who tends to see the worst aspect of things or believe that the worst will happen. This is the opposite of someone with "die-hard idealism."