Given a1=3a_1 = 3a1=3 and d=4d = 4d=4, which of the following is true for the nthn^{th}nth term?
an=4n−1a_n = 4n - 1an=4n−1
an=4n+3a_n = 4n + 3an=4n+3
an=3n+4a_n = 3n + 4an=3n+4
an=4n+1a_n = 4n + 1an=4n+1