Please answer the following question by reasoning step-by-step.
Where might a bald eagle soar in clear skies?\nOptions:\n- nature preserve\n- mountainous area\n- in washington\n- soup\n- colorado in washington

mountainous area
Mountainous area is a natural habitat of bald eagle.

Bald eagles soar in clear skies over their natural habitat.

.

Thus, the answer is mountainous area