8. When testing the benefits of a new fertilizer on the
growth of tomato plants, the control group should include
which of the following? *
O
A) Tomato plants grown in soil with no fertilizer
O
B) Tomato plants grown in soil with the original type of fertilizer
O
C) Tomato plants grown in a different type of soil with the new fertilizer
O
D) Tomato plants of different varieties grown in soil with new fertilizer