Right Answer is:
Option B has the grammatically incorrect part. The error lies in the incorrect usage of a preposition. “To” is typically used before a noun or verb, and describes a destination, recipient, or action. “Too,” on the other hand, is a word that’s used as an alternative to “also” or “as well”. It’s also used to describe an adjective in extremes. The above segment is discussing a catastrophe, which is an action.