Which sentence does not contain any errors in comma usage? a. know what your goals

Which sentence does not contain any errors in comma usage?
a. know what your goals are, how you plan to achieve them, and when you will reach each step of your plan.
b. cleo roger, and lila are in charge of refreshments.
c. if you clean the house, you'll find the quarters i hid in the living room in the kitchen and in your bedroom.
d. we are going to need scissors glue, and construction paper.