Q. He is an architect and . . . . . . . . interior designer.
✅ Correct Answer: (B)
an
Explanation: Just like 'architect', 'interior designer' will also take 'an' article as 'both' are singular countable nouns and start with a vowel.
Explanation by: Mr. Dubey
Just like 'architect', 'interior designer' will also take 'an' article as 'both' are singular countable nouns and start with a vowel.