If a human fetus were to grow throughout a pregnancy at the rate of between the fourth and eighth week, the baby would weigh over fourteen tons at birth.
B were to grow throughout a pregnancy at the rate at which it grows between the fourth and eighth weeks
C were to grow throughout a prenancy at the rate of the fourth to the eighth weeks
D should grow at the rate of weeks four to eight throughout a pregnancy
E should grow at the same rate that it grew between the gourth and eight week throughout a pregnancy
the answer is B
why not C?