What is the plural of CRISIS?

**The reasoning** This tests your knowledge of **irregular plural formation** from Greek and Latin roots. The word "crisis" comes from Greek, where words ending in "-is" become plural by changing to "-es" (pronounced "eez"). So: crisis → cris**es** Other examples following this same pattern: - analysis → analyses - basis → bases - thesis → theses This is a fixed rule in English for Greek-origin nouns ending in "-is". **Why the wrong options tempt you** **B) Crisises** — You're applying the regular English plural rule (add "-es"). That works for native English words like "buses" or "wishes", but not Greek-origin words. **C) Crisis'** — The apostrophe shows possession (the crisis' impact), not plurality. This confuses ownership with multiples. **D) Crisi** — This drops the "s" randomly, perhaps thinking of Italian plurals, but English keeps the structure "crises". **Quick takeaway** Greek words ending in "-is" always become "-es" in plural: one crisis, many cris**es** — just like one thesis, many thes**es**.