By the End of the Third Month,the Typical Fetus Can

By the end of the third month,the typical fetus can be described as "three times three" because ____.

A) it has been three months, the fetus weighs three ounces, and is three inches long
B) it weighs three pounds, is three inches long, and has three senses
C) three major systems have developed: brain, heart, and lungs
D) all three facial features are clearly distinguishable