Crossing over is a process which contributes to diversity in offspring of an organism. Which statement BEST explains this process?

During metaphase II, sister chromatids of a homologous pair exchange genetic information.

A sister chromatid from one homologous pairs switches places with a sister chromatid from a different homologous pair.

Homologous chromosomes exchange genetic information during prophase I
Sister chromatids separate to form haploid cells during anaphase II
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