Select the answer below that correctly describes the steps of sporulation.
O a. DNA replication, formation of a double layer of membrane, cortex formation, spore release
O b. DNA replication, spore release, cortex formation, formation of a double layer of membrane
O c. Formation of a double layer of membrane, DNA replication, spore release, cortex formation
O d. Cortex formation, formation of a double layer of membrane, DNA replication, spore release
