Which sentence type typically ends with a period?

A declarative sentence makes a statement or expresses an opinion, and it typically ends with a period. For example, "The sun is shining brightly today." An imperative sentence gives a command or makes a request, and it can also end with a period when the command is stated in a polite form, such as, "Please close the door."

While exclamatory sentences express strong emotions and end with an exclamation mark, and interrogative sentences ask questions and end with a question mark, both declarative and imperative sentences consistently conclude with a period. This is why the answer correctly identifies that these two sentence types are the ones that typically use a period as their terminal punctuation.