Question

Can someone help me.
A scientist suggests keeping indoor air relatively clean as follows: provide 2 or 3 pots of flowers for every 100 square feet of floor space under a ceiling of 8 ft. If your classroom has an 8 ft ceiling and measures 35 ft by 40 ft, how many pots should it have?
a.
35 – 52 pots
c.
28 – 42 pots
b.
26 – 39 pots
d.
27 – 36 pots