Which of the following is not a compilation error? Group of answer choices a. Placing a semicolon at the end of the first line of an if statement. b. Omitting the left and) for the condition of an if statement. c. Neglecting to initialize a local variable in a method before it is used. d. All are compilation errors.

Option A.

Placing a semicolon at the end of the first line of an if statement.

Explanation:

Compilation error refers to a state when a compiler fails to compile a piece of computer source code, either due to errors in the code or more unusually, due to errors in the compiler itself.

When you get a compilation error, various things can be wrong: you may have made a lexical, parse, static or a type error.

* Option A, placing a semicolon at the end of the first line of an IF statement is not a compilation error so it is correct.

* Option B, omitting the left and) for the condition of an IF statement is a syntax error under compilation error, so the option is incorrect.

* Option C, Neglecting to initialize a local variable in a method before it is used is also incorrect because local variables which are variables declared inside a body of a method must be initialized before they can be used, failure to do so will generate a compiler error.

* Option D, all are compilation errors is also incorrect because option A is not a compilation error.

Therefore, the answer to the question is option A.