Which sentence is punctuated correctly?

a.
"boy," darren replied, "you weren't kidding."

b.
fred asked, "do you have an extra pencil, adam? "

c.
"i visit my grandmother at the nursing home," said juanita, "at least once a week."

d.
"where have you been? " ronald asked.

In the essay “drowning in dishes,” what is ironic about the fact that danial’s first position in his new job is the dishwashing station?

What effect is achieved by the author telling us that burr set out to "seduce" nolan? a) it causes the reader to see burr in a sinister light. b) it puts a positive spin on burr's actions and character. c) it creates in the reader a sense that nolan will be changed for the better. d) it makes burr seem slightly less heroic, despite his general valorous qualities.

Which would most improve the coherence of an essay?