It is D cause I had this on the test last year
In this question an excessive fetal activity and fetal tachycardia indicates fetal hypoxia.
Fetal hypoxia happens when the fetus does not receive a sufficient amount of oxygen in the womb. Thid situation is life threatening to the fetus and should be given prompt attention by the doctor or ob gyne. Fetal hypoxia is present when the following signs are present like having increased heart rate and fetal tachycardia.