The infrastructure along the east coast - the ports of Vizag, Chennai and Ennore, the Kalpakkam Nuclear Power Plant and so on escaped almost ________.

“Escaped” before the blank provides the clue for the blank. The infrastructure along the east coast was not affected by the tsunami disaster i.e. the east coast was not harmed. Therefore, the blank would be replaced by the blank which means “not harmed”. “Unscathed” (not hurt, unharmed) in option (B) fits our prediction. “Uncrippled” (sensibility, activity or ability to act). is usually used figuratively. Hence, (2) is the answer.