Among the isomeric alkanes formula `C_(5)H_(12)`, identify the one that on photochemical chlorination yields only monochloro derivative.

Among the isomeric alkanes of molecular formula C_(5)H_(12) , identify the one that on photochemical chlorination yields (i) A single monochloride. (ii) Three isomeric monochlorides. (iii) Four isomeric monochlorides.