Select the appropriate question tag for the given sentence: It looks…

The correct answer is Option (4) → doesn't it?

Question tags:

• A question tag repeats the helping verb of the statement with a pronoun for the subject.
• A positive statement takes a negative tag.
• When the statement has no helping verb (simple present or past), the tag uses do/does/did.
• This sentence: "It looks perfect here" is a positive simple present sentence with the subject "it", so the tag is doesn't it?
  Example: She sings well, doesn't she?

Why the Other Options are Incorrect?

Option 1: is it? — Incorrect. The verb is "looks", not "is"; and a positive statement needs a negative tag.

Option 2: isn't it? — Incorrect. It is negative, but "is" does not match the main verb "looks", which needs "does".

Option 3: does it? — Incorrect. The helping verb is right, but the tag must be negative after a positive statement.