Select the most appropriate synonym of the given word.
Gradient

Correct option is C

The correct synonym of the given word is (c) Ramp.
Gradient: A gradient is a sloping part of a road, railway, path, etc. or the degree of a slope. It also refers to a rate of change or inclination. (ढाल या चढ़ाई)
Example: The car struggled to climb the steep gradient.
Ramp: A ramp is a sloping surface that joins two different levels. It is commonly used in roads or buildings. (ढलान)
Example: The wheelchair access ramp made it easier to enter the building.
Synonyms: incline, slope, ramp, grade
Antonyms: flat, level, even surface, plateau
Meanings of all the other given options:
· (a) Flag: A piece of cloth symbolizing a country or group (झंडा)
· (b) Learn: To gain knowledge or skill (सीखना)
· (d) Manifest: To show or demonstrate clearly (दिखाना / प्रकट करना)