Which sentence does not contain any punctuation errors?

a.
it would be fun, i think, to go up in a hot-air balloon.

b.
it would be fun, i think to go up in a hot-air balloon.

c.
it would be fun i think, to go up in a hot-air balloon.

d.
it would be fun i think to go up in a hot-air balloon.

a or c, i think. plz

Which character in this excerpt is in conflict with society, and why? joe summers is in conflict with society because he is joking with the villagers. old man warner is in conflict with society because he believes that young folks have crazy ideas. mrs. adams is in conflict with society because she says some villages have stopped holding lotteries. mr. adams is in conflict with society because he is standing with the villager who represents society's old ways.