The answer here is Prophase 1 (A)
In the event of meiosis, Prophase 1 occurs right after Interphase (stage when DNA is replicated). In the Prophase 1 stage, chromosomes condense and pair off and then exchange DNA between each other in a manner of crossing-over homologous chromosomes. The cross-over procedure forms a X-like region called Chiasmata that holds the homologous chromosomes intact.
