Question

select the answer option that correctly combines the sentences below. \a tornado is a dangerous rotating pillar of air. the dangerous rotating pillar of air is capable of great destruction.\ a tornado is a dangerous rotating pillar of air, and it is capable of great destruction. a tornado is a dangerous rotating pillar of air that is capable of great destruction. the tornado is a dangerous rotating pillar of air, and the dangerous rotating pillar of air is capable of great destruction. a tornado is a dangerous rotating pillar of air of great destruction.

Explanation:

The second - option combines the sentences most concisely and grammatically correctly by using a relative clause "that is capable of great destruction" to modify "a dangerous rotating pillar of air". The first option uses "and it is" which is less concise. The third option is redundant in repeating "the dangerous rotating pillar of air". The fourth option "of great destruction" is an unclear and less standard way of expressing the idea compared to the relative - clause construction.

Answer:

B. A tornado is a dangerous rotating pillar of air that is capable of great destruction.