The Supreme Court's Decision in Obergefell V

The Supreme Court's decision in Obergefell v.Hodges (2015) was significant because it

A) guaranteed same-sex couples the right to marry in all states and required states to recognize same-sex marriages performed in other jurisdictions.
B) upheld the constitutionality of state-level bans on same-sex marriage.
C) asserted that there was no constitutional right to privacy for consensual homosexual activity.
D) asserted that there was a constitutional right to privacy for consensual homosexual activity.