The part explanations are
(a) \[100\]is detachable by \[3\]
(b) \[100\]is detachable by \[11\]
(c) \[100\]is separable by \[5\]
Here, the articulations \[\left( a \right)\text{ }and\text{ }\left( b \right)\]are bogus and \[\left( c \right)\]is valid.