The lymphatic system stores white blood cells and collects excess fluid and returs it to blood in the circulatory system.
True
False

thats not even an aswer choice

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.