The diagrams which were made by young Faraday were sent to Sir Humphry Davy at the end of 1812. (Use reduced relative clause)=> ............

A. The diagrams were sent to Sir Humphry Davy at the end of 1812 made by young Faraday

B. The diagrams were made by young Faraday were sent to Sir Humphry Davy at the end of 1812.

C. The diagrams made by young Faraday were sent to Sir Humphry Davy at the end of 1812.

D. The diagrams which made by young Faraday were sent to Sir Humphry Davy at the end of 1812.