The following structures are found on the underside of fern leaves and contain sporangia:
sori
rhizomes
megaphylls
microphylls

The sori are found on the underside of fern leaves and contain sporangia.

Explanation:

Sori are structures on the underside of leaves of ferns. They consist of a variety of sporangia and sometimes a indusium that protects the young sporangias. The shape of the sorus is often of importance when determining a species of fern.

the peripheral nervous system or pns contains the nerves, which leave the brain and the spinal cord and travel to certain areas of the body. the peripheral nervous system's main job is to send information gathered by the body's sensory receptors to the cns as quickly as possible.

c should be the answer