Select the correct text in the passage.
which two sentences in the passage introduce counterarguments to the speaker’s position in favor of recycling?
a: we only have a limited number of resources to serve humans around the globe.
b: admittedly, we cannot reuse or recycle all of the materials we use in our daily lives.
c: others items are not biodegradable regardless of what we reuse them for, and that can create problems in the long run.
d: my opponent would use these limitations of our ability to recycle to counter my points about the materials we can recycle.
e: we should reuse and recycle the materials that we can and try our best not to buy materials and products that can’t be reused or recycled.

B.) Admittedly, we cannot reuse or recycle all of the materials we use in our daily lives.

and

D.) My opponent would use these limitations of our ability to recycle to counter my points about the materials we can recycle.

Both these sentences are countering the speaker's claim.

B: Admittedly, we cannot reuse or recycle all of the materials we use in our daily lives.

C: Others items are not biodegradable regardless of what we reuse them for, and that can create problems in the long run.

Explanation:

These two sentences introduce counterarguments to the speaker's position in favor of recycling. In the first line, the author accepts that his argument has an important limitation: the fact that not everything we use can be reused or recycled. The second line presents another counterargument to the speaker's  claim, as it argues that many items, particularly those which are not biodegradable, would cause problems in the long run regardless of whether they are recycled or not.