Select the option that can be used as a one-word substitute for the underlined group of words.

Samantha keeps herself occupied by helping other people willingly without expecting any payment for her services.

The correct answer is 'Volunteer'.

Key Points

• Volunteer means a person who offers or agrees to do something without being forced or paid to do it. (स्वयंसेवक)

                  • Example- She now helps in a local school as a volunteer three days a week.

• So, It is clear that 'Volunteer' can be used as a one-word substitute for "helping other people willingly without expecting any payment for her services."

Additional Information

• Opportunist means making use of an opportunity, especially to get an advantage for yourself; not done in a planned way. (अवसरवादी)
• Mercenary means interested only in making money. (केवल पैसे कमाने में रुचि रखना)
• Iconoclast means a person who does not believe in and is opposed to accepted ideas, traditions, etc. (एक व्यक्ति जो स्वीकृत विचारों, परंपराओं आदि का विरोध करता है)

Therefore, the correct answer is option 2.