Most appropriate stage of development in which boys and girls start showing interest in the opposite sex is?

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E6 Nursing Fundamentals Potter Perry 12e Part 1 p. 163-165
E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 3335-3337
Practise the full IGNOU Post B. SC. Nursing entrance-2019
Attempt every question from this paper in a timed mock, then review the full solution for each one.