Final answer:
In Roe v. Wade (1973), the US Supreme Court ruled that the first trimester of pregnancy is when there is least regulation of abortion, considering it a time that respects a woman's right to privacy, and defined as the first three months before the fetus is viable.
Step-by-step explanation:
In the landmark decision Roe v. Wade (1973), the United States Supreme Court established a framework for abortion rights: (e) all of the above. This ruling deemed that during the first trimester of pregnancy, there would be the least regulation of abortion, recognizing it as a period where the woman's right to privacy is heightened. The first trimester was identified as the first three months of pregnancy, a time considered before the viability period of the fetus, indicating that the state should not impose regulations on abortion during this time