consider this claim: the best position for sleeping is on your stomach.

Now consider how someone might argue against this. Which sentence presents a counterclaim to the above claim?
Sleeping on your stomach can be uncomfortable pressure on your lower back.
Many people go to the doctor with pain caused by the position they sleep in.
None of the above

Sleeping on your stomach can be uncomfortable pressure on your lower back.

A B or C

A. Sleeping on your stomach can be uncomfortable pressure on your lower back.

The sentence that presents a counterclaim to the claim that the best position for sleeping is on your stomach is: "Sleeping on your stomach can be uncomfortable pressure on your lower back." This sentence argues against the claim by emphasizing a potential negative consequence of sleeping on your stomach, which is lower back discomfort.