Help on a sentence error problem!

Test Preparation SAT Preparation
1

<p>NO MATTER how CAUTIOUS snowmobiles ARE driven, they are capable OF DAMAGING the land over which they travel.</p>

<p>A. No matter
B. cautious
C. are
D. of damaging
E. No error</p>

<p>What do you think the answer is ?</p>

2

<p>B (cautiously)</p>

3

<p>cautious?
I'm guessing it should be 'cautiously'.</p>

4

<p>Agree. B. (cautious->cautiously)</p>

5

<p>B. Should be 'cautiously'</p>