I disagree with the list of correct answers: this list should contain 5 answers, not 4.

Asking to choose 4 answers makes it confusing

Great.

Thanks a lot.

Thanks Lowell.

That's not exactly what i'm looking for, bit it's definitely an option to consider.

The third way is wrong for my birthday, which is 08/30/1954.

As of today I'm 53 years old, but it returned 54.

So definitely second way of age calculation is the...