In the C programming language, the "if-else" statement is used to control the flow of program execution based on a specified condition. The syntax for an "if-else" statement is as follows:

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if (condition) {    // code to be executed if condition is true } else {    // code to be executed if condition is false }

The "condition" is a boolean expression that is evaluated to either true or false. If the condition is true, the code within the first set of curly braces (i.e., the "if" block) is executed. If the condition is false, the code within the second set of curly braces (i.e., the "else" block) is executed.

You can also use the else if statement to check multiple conditions

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if (condition1) {    // code to be executed if condition1 is true } else if (condition2) {    // code to be executed if condition1 is false and condition2 is true } else {    // code to be executed if condition1 and condition2 are both false }