What outcome will appear if an expression 7==5+2 ? 4 : 3 is called?

The expression 7==5+2 ? 4 : 3 is a ternary operator in many programming languages like C, C++, Java, JavaScript, etc.

Here's how it works:

1. The expression before the ? is evaluated first. In this case, it's 7==5+2. This is a comparison operation that checks if 7 is equal to the result of 5+2. Since 5+2 equals 7, the comparison is true.

2. If the expression before the ? is true, then the expression immediately after the ? is returned. In this case, it's 4.

3. If the expression before the ? is false, then the expression after the : is returned. In this case, it's 3.

So, in this case, because 7==5+2 is true, the expression 7==5+2 ? 4 : 3 will return 4.