Which sentence is punctuated correctly?

a.

"have we crossed the state line yet? my grandmother asked the bus driver."

b.

"that's easy for you to say," my sister replied.

c.
this is a delicious meal, my aunt told my mother.

d.
josé explained, "the pot roast will have to cook for a few hours.

Read the excerpt from the common sense of bicycling: bicycling for ladies. the bicycle is capable of such high speed that there is a strong temptation to ride so fast as to cause over exertion or excessive perspiration. on the other hand some people ride too slow, causing a zigzag and uncertain movement. while exercising reasonable caution, be a fearless rider. when you come to a steep hill, if the road is clear, let it go as fast as it will. if you rid yourself of that ghost of fear, coasting is one of the greatest delights of cycling. which is the best paraphrase of the text?