Which of the following is the correct expanded form for the series below? 3∑ = n²
a) 3, 0, 1, 4, 9
b) 3(0, 3), (1, 3), (4, 3), (9, 3)
c) 1, 3, 9, 27
d) 3(0, 3), (2, 3), (4, 3), (6, 3)