The words below all begin with al-. In which word or words is al - an Arabic prefix?

alchemy

almighty

almond

algebra

Roughly translated to "the," the Arabic word "al - " is prefixed to nouns to make them definite. I believe the correct answer from the choices listed above is the first option. It would be alchemy and algebra the words which uses "al-" as a prefix. Hope this answers the question.