Which answer choice is a complete sentence?

The primary functions of the spleen are to filter blood and to serve as part of the immune system.

The primary function of the spleen is to filter blood and is also part of the immune system.

The primary function of the spleen is to filter blood it is also part of the immune system.

The primary function of the spleen is to filter blood; is also part of the immune system.

Respuesta :

Answer:

the first one. “The primary functions of the spleen are to filter blood and to serve as part of the immune system.”

Explanation:

Answer:

The primary functions of the spleen are to filter blood and to serve as part of the immune system.

Explanation:

i took the test and i got it right ;)