Question

1. read the sentence.

what a perfect day this has turned out to be
what is the correct way to punctuate this sentence?
what a perfect day this has turned out to be?
what a perfect day this has turned out to be!
what a perfect day this has turned out to be.
what a perfect day this has turned out to be,

Explanation:

This is an exclamatory sentence expressing strong positive emotion about the day. Exclamatory sentences use an exclamation mark at the end to convey excitement or emphasis, rather than a question mark, period, or comma.

Answer:

What a perfect day this has turned out to be!