Place the Following in Order of Increasing Radius

Multiple Choice

Place the following in order of increasing radius. Sr²⁺ Se²⁻ Br⁻

A) Sr²⁺ < Br⁻ < Se²⁻
B) Br⁻ < Sr²⁺ < Se²⁻
C) Se²⁻ < Br⁻ < Sr²⁺
D) Sr²⁺ < Se²⁻ < Br⁻
E) Br⁻ < Se²⁻ < Sr²⁺