Find the first term, the common difference, and give a recursive formula for the arithmetic sequence. 6th term is - 10, 15 term is - 46 . . . . O A. al = - 10; d= -4; an = an-1 -4 O B. a1 = - 30; d=4; an = an-1+4 O c. a1 = 10; d= -4; an = an-1-4 O D. a1 = 10; d =4; an = an-1+4