nerves are responsible for carrying messages from the brain and spinal cord to other parts of the body and causes muscles to move.

A Skeletal
B Sensory
C Motor
D Axial

C.

Motor nerves are responsible for muscle movement, etc. (also, the definition of motor (the adjective) is "giving, imparting, or producing motion or action" )

Answer is option C. Motor

The concentration of carbon dioxide in Earth's atmosphere is currently at nearly 412 parts per million (ppm) and rising. This represents a 47 percent increase since the beginning of the Industrial Age, when the concentration was near 280 ppm, and an 11 percent increase since 2000, when it was near 370 ppm.