Question

Identify the following.

While your courtesy is appreciated, your letter arrived too late.
fragment
simple sentence
complex sentence

Answer 1

This is a complex sentence

Step-by-step explanation:

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Answer 2

This is a complex sentence: it contains two independent clauses that could be sentences by themselves:

1.your courtesy is appreciated,

3.your letter arrived too late.

They're joined by a conjunction (while): this i also typical of complex sentences!