The right answer is G2 phase, in order to prepare itself for the M phase.
Phase G2 is a short phase (3 to 4 hours) that starts as soon as replication is enabled; the cell is diploid.
SMC (Structural Maintenance of Chromosomes) Proteins: Condense chromatin = a kind of motor that causes the coil of chromatin.
Histones H1 (internucleosomal histones) are also involved in this condensation.
