Given a term in a geometric sequence and the common ratio find the first five terms, the explicit formula, and the recursive formula. A1 = 4, r = 5 Question 4 options: First Five Terms: 5, 20, 80, 320, 1280; an=5*4n−1;a1=5 First Five Terms: 4, 9, 13, 18, 23; an=5*4n−1;a1=4 First Five Terms: 4, 20, 100, 500, 2500; an=4*5n−1;a1=4 First Five Terms: 20, 25, 30, 35, 40; an=4*5n−1;a1=4