14. During prophase I of meiosis, what is the primary function of the synaptonemal complex? (A) It cleaves cohesins to allow sister chromatids to separate. (B) It attaches kinetochores to the spindle fibers. (C) It prevents crossing over between sister chromatids. (D) It holds homologous chromosomes tightly together to facilitate crossing over. (E) It condenses the chromosomes before metaphase.