The ARD for the assessment is January $20.$ The following weights appear in the record:

December $3162$

December $10161$

December $17158$

December $24156$

January $1155$

January $8153$

January $15150$

Which weights would be used to calculate the weight loss in the last month for K$0300?$

A$.$ January $15$ and December $17$

B$.$ January $15$ and January $8$

C$.$ December $24$ and December $3$

D$.$ January $1$ and December $3$