Which of the following sentences with a parenthetical expression is punctuated correctly? Select one:
a. Oil paintings in my opinion, are unmatched in their ability to portray movement and energy.
b. Cave paintings, in fact, are proof that the urge to create has always been part of what makes us human.
c. Watercolor, unlike oil paint has a transparency that reflects light back up from the canvas.
d. The fumes from oils and acrylics on the other hand, made Bob sneeze.

B

Explanation:

you have to punctuate after saying in fact and before it, for some reason.

obama was told in early july 2004 that he was chosen to deliver the address, and he largely wrote the speech himself, with later edits from the kerry presidential campaign.

his tongue, i believe, was bloody and hanging out of his mouth.

he looked as if he were hungry.

he has several wolf-like qualities; a gray coat, sharp claws and yellow fangs.

those eyes made me feel, dear reader, like the end was near.

as i reached for a stick, he moved to the other side of the hill.

panting and hungry, he looked at me, a defenseless human and he snarled.

well i said my prayers, however, he simply turned and limped off.