Question

Choose the best revision of the previous sentence. Because many executives have access to company jets boards of directors have a responsibility to ensure that shareholders are not footing the bill for personal travel.
Because many executives have access to company jets, boards of directors have a responsibility to ensure that shareholders are not footing the bill for personal travel.
Because many executives have access to company jets boards of directors have a responsibility toensure, that shareholders are not footing the bill for personal travel.
Because many executives have access to company jets, boards of directors have a responsibility to ensure, that shareholders are not footing the bill for personal travel.

Answer 1

Answer: Because many executives have access to company jets, boards of directors have a responsibility to ensure that shareholders are not footing the bill for personal travel.

Explanation: because it would be English error to make use of a 'comma' before a clause that begins with 'that'

(2nd and 3rd sentence)