Select the option with the most appropriate meaning of the given foreign word:

"AB INITIO"

from the very beginning

The correct answer is OPTION 3 - AB INITIO

AB INITIO is a Latin phrase meaning "from the beginning."

The most appropriate meaning of "ab initio" is:  from the very beginning

very basic: While something done "ab initio" might involve starting with the basics, it doesn't directly translate to "very basic."
final conclusion:  "Ab initio" refers to the start, not the end.
from beginning to end:This captures part of the meaning, but "ab initio" emphasizes the very start, not necessarily continuing to the end.