17.Why is the syllable “a” before “i” stressed in the word archaic? (A) In two-syllable nouns and adjectives, the first syllable is usually stressed. (B) In compound nouns, we usually stress the first word. (C) In words ending in -ic, the main stress is usually on the penultimate syllable. (D) In words ending in -al or -able, the stress is usually on the pre-penultimate syllable.