A baby girl weighed 18 lb 10 oz at 11 months and 20 lb 2 oz at 12 months. How much weight did the baby gain during this month? (1 lb = 16 oz)

would it be 2lb 2oz???

or
A. 1 lb 2 oz
B. 1 lb 8 oz
C. 2 lb 2 oz
D. 2 lb 8 oz

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south