Which code branch is executed when the variable 'a' has a value of 25?

The assertion that the branch introduced by the condition checking if 'a' is greater than 10 executes when 'a' is 25 is correct. When 'a' equals 25, this condition evaluates to true because 25 is indeed greater than 10. Consequently, the block of code associated with this condition will run.

If we consider the first branch, the ELSEIF statement checking if 'a' equals 25 would not execute unless the preceding IF condition (a > 10) was false. Since 'a' is indeed greater than 10, this means the execution will not fall through to the ELSEIF. Thus, while that branch checks for a specific value (25), it does not take effect due to the prior condition already being satisfied.

In summary, the logical flow leads to the execution of the second condition due to 'a' being 25, validating that this branch runs while the ELSEIF does not.