Select the most appropriate option using the correct prefix to the highlighted word in the given sentence.
The airline ___ graded me to the business class on my return trip.

Correct option is B

The correct option is (b) up.

Explanation:
The sentence describes a situation where the airline moved the passenger to a higher class (business class), which is an improvement. The correct word is upgraded, formed by adding the prefix up- to graded.

Correct answer – upgraded:
Upgraded means to raise something to a higher standard, rank, or class.
(Hindi meaning: उच्च श्रेणी में स्थानांतरित करना)
Example: The hotel upgraded our room to a suite at no extra charge.

Explanation of Other Options:

• (a) out + graded = outgraded – Not a standard English word in this context.
• (c) mis + graded = misgraded – Means evaluated incorrectly; does not match the meaning of being moved to a higher class.
• (d) in + graded = ingraded – Not a valid English word.