Jill charges an hourly rate for babysitting one or two children. Kara changes a lower hourly rate but adds additional charge for more that on child. The tables show the amounts Jill and Kara charge for babysitting two children for up to three hours. Based on this information, which statement is true?

for one hour, jill will make $11 while kara will make $14.
for two hours, jill will make $22, kara will make $23.
for three hours, jill will make $33, kara will make $32.

a) jill will make less money if they each work 4 hours.
b) jill's hourly rate is $3 more than kara's.
c) kara charges $14 and hour for babysitting two children.
d) kara's fee for the second child is $5.