Character constants in $C++$ are always enclosed in

pound sign and semicolon $(4$ z $)$

single quotation marks $("")$

Any of these

brackets

braces $(1$ b$)$

Character constants in $C++$ are always enclosed in

pound sign and semicolon $(4$ z $)$

single quotation marks $("")$

Any of these

brackets

braces $(1$ b$)$