Answer:
The correct answer is letter "B": They can send in comment letters to the NTSB.
Step-by-step explanation:
The National Transportation Safety Board or NTSB is an independent agency of the U.S. government in charge of conducting investigations of civil transportation accidents. If the NTSB is analyzing to impose regulation for airlines so babies under 2 years old must travel strapped on baby seats instead of on their parents' lap, the regulation is likely to affect airlines since travelers with babies will have to pay more. Thus, airlines and parents could write them a letter to dismiss the proposed imposition presenting factual data of accident rates of traveling with babies on parents' laps.