During Pregnancy,protein Needs

During pregnancy,protein needs

A) remain 0.8 g/kg of body weight, resulting in a slow increase as the woman gains weight.
B) increase to 1.1 g/kg of body weight.
C) increase by an additional 40 grams or so of protein per day.
D) remain 0.8 g/kg of body weight throughout the first and second trimesters, then increase to 1.8 g/kg of body weight in the third trimester.