The Company Commander assembled his men and announced their mission.a.Complexb.Compoundc.Complex Compoundd.Simple

The question is asking to identify the type of sentence used in the given statement.

To determine the type of sentence, we need to analyze the structure and complexity of the sentence.

The given statement is: "The Company Commander assembled his men and announced their mission."

Let's break down the sentence:

1. "The Company Commander assembled his men" - This is a simple sentence because it consists of one independent clause. It expresses a complete thought and can stand alone as a sentence.

2. "and" - This is a coordinating conjunction that connects the first part of the sentence with the second part.

3. "announced their mission" - This is another simple sentence because it also consists of one independent clause.

Based on the analysis, the given statement is a complex sentence because it is made up of two simple sentences connected by a coordinating conjunction.