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 In the C programming language, expressions are combinations of variables, constants, and operators that produce a value. Expressions can be as simple as a single variable or complex with multiple operators and operands. Operators are symbols or keywords that perform specific operations on operands within expressions. Here are some commonly used operators and examples of expressions in C: 1. Arithmetic Operators:    - Addition (+): Performs addition of two operands.      Example: int sum = 3 + 4;    - Subtraction (-): Performs subtraction of two operands.      Example: int difference = 8 - 5;    - Multiplication (*): Performs multiplication of two operands.      Example: int product = 2 * 6;    - Division (/): Performs division of two operands.      Example: float quotient = 10 / 3;    - Modulus (%): Computes the remainder of division.    ...