What is an expression and operator? Discuss operator associativity in C.Write a program to find factorial of a given integer using recursion.[5+5]

--- (a) Expression and Operator An expression in C is a valid combination of operands (variables, constants) and operators that evaluates to a single value. Examples: Expression Type ------ a + b c Arithmetic expression x y Relational expression a = 10 Assignment expression a && b Logical express...