How would gravity cause planets to move if they did not have inertia? A. planets would orbit Jupiter
B. Planets would be pulled into the sun
C. Planets would move in a straight line away from the sun
D. Planets would run into one another

B. Planets would be pulled into the sun.

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.