i need a picture to solve
i believe the answer would be c
the the compound of interest i.e. xcl4, since there are 4 cl atoms bonded to x. this signifies that the valency of x is 4.
there atomic number of c is 6. it's electronic configuration is giving by 1s2 2s2 2p2. thus, there are 4 electrons in valence shell of c. this signifies that valency of c is 4. hence the compound present in present case is ccl4.
hope this : )