Which sentence is punctuated correctly?

a. the steak is overcooked, we'll eat it anyway.

b. the steak is overcooked, but we'll eat it anyway.

c. the steak is overcooked but we'll eat it anyway.

d. the steak is overcooked; but we'll eat it anyway.

In a group discussion, which statement most clearly uses evidence to support a conclusion? a) the author makes some good points, but i feel that he’s ultimately biased. b) the author proves that he’s biased when he uses terms like “silly” and “stupid”. c) the author obviously hates the way fast food tastes, which is why he’s negative. d) the author first criticizes fast food, and then goes in to criticize junk food.