Which of the following are risk factors for pregnancy ?
(A) BMI 5kg/$m^2$
(B) Maternal weight $<$ 45kg
(C) Short stature
(D) Multigravida
(E) Birth interval 18-24 months
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A normal BMI (5) and a healthy birth spacing interval (18-24 months) are protective health indicators, not risk factors. Eliminating options (A) and (E) leaves only (B), (C), and (D).