Which of the following show a geometric series? Select all that apply.

A geometric series has a constant ratio between consecutive terms. In A, each term is multiplied by 1.5: 3 ÷ 2 = 4.5 ÷ 3 = 6.75 ÷ 4.5. In E, each term is multiplied by 1/2: 4 ÷ 8 = 2 ÷ 4 = 1 ÷ 2. The other choices do not keep the same ratio between consecutive terms.

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