True or false? : a protostellar cloud spins faster as it contracts, even though its angular
momentum stays the same.

a) true, angular momentum is conserved and if the cloud contracts, it must spin faster.
b) true, clouds spin faster as they contract but their angular momentum must also increase.
c) false, if the angular momentum stays the same, the cloud must spin at the same rate.
d) false, if the angular momentum stays the same, the cloud cannot contract.