Select the option that is the most appropriate substitute for the statement given below:
Someone who believes that there should be extreme change, often political.

Correct option is A

The correct one-word substitution is (a) Radical.

Given expression – Someone who believes that there should be extreme change, often political:
This expression describes a person who advocates for fundamental or extreme changes in political, social, or economic structures.

Correct answer word – Radical:
A radical is a person who holds extreme views and advocates for thorough or drastic political or social reform.
(Hindi meaning: क्रांतिकारी / मूलगामी परिवर्तन में विश्वास रखने वाला)
Example: The radical demanded a complete overhaul of the existing political system.

Meanings of other options:

• (b) Convert – A person who has changed their religion or beliefs (धर्म परिवर्तित करने वाला); does not relate to political extremism.
• (c) Fanatic – A person with extreme and often irrational enthusiasm or zeal, especially in religion (कट्टरपंथी); while intense, it does not specifically refer to a believer in political change.
• (d) Reactionary – A person who opposes political or social change and wants to return to a previous state (प्रतिक्रियावादी); this is the opposite of someone who wants extreme change.