The Mean Temperature for January Was 30 $\degree$ F in February the Mean Was 25

Multiple Choice

The mean temperature for January was 30 $\degree$ F. In February the mean was 25 $\degree$ F and for March the mean was 35 $\degree$ F. The weighted mean for these three months is

A) 30 $\degree$ F
B) greater than 30 $\degree$ F
C) less than 30 $\degree$ F.