Which Development Occurs in the Eighth and Ninth Months of Fetal

Which development occurs in the eighth and ninth months of fetal development?

A) Eyebrows and eyelashes appear over partially open eyelids.
B) Eyelids partially open and the lungs begin to produce surfactant.
C) Neuron networks form, lanugo is shed, and blood cells form in the bone marrow.
D) Fat is deposited in subcutaneous tissues, and the eyelids can completely open.