Select the option that can be used as a one-word substitute for the given group of words.
To renovate or improve

Correct option is B

The correct one-word for the given group of words is (b) Revamp.
Explanation: “Revamp” means to improve or renovate something so that it looks new or better. (सुधार करना / पुनर्निर्माण करना)
Example: The company revamped its website to attract more customers.
Meanings of the other options:
· (a) Relocate: to move to a new place (स्थान बदलना)
· (c) Resume: to begin again after a pause (पुनः आरंभ करना)
· (d) Revalue: to re-assess the value of something (मूल्यांकन दोबारा करना)