I believe the answer is B.
It was controversial mainly for two reasons: Because it involved the abortion attempt of a young woman who was a physical and emotions abuse victim, who had also lied to authorities in Texas in order to get a legal abortion. Public opinion was largely divided on the issue. Conservatives blamed the woman and Democrats blamed the existing laws that prevented women from aborting.
The second reason was judicial: many people considered that the Constitution was being misinterpreted to adjust to shifting social mores. For these dissenters, there was no legal justification of any kind to authorize abortion as a Constitutional right.
An era has to do with a time period with a very specific start and end so I would say C
The answer is B) the crime is a serious felony.