During the Complete Physical Examination 24 Hours After Birth

During the complete physical examination 24 hours after birth:

A) The parents are excused to reduce their normal anxiety.
B) The nurse can gauge the neonate's maturity level by assessing the infant's general appearance.
C) Once often neglected, blood pressure is now routinely checked.
D) When the nurse listens to the heart, the S1 and S2 sounds can be heard; the first sound is somewhat higher in pitch and sharper than the second.