Light glows for every 32 seconds . How many max. times did it glow between 1:57:58 and 3:20:47 am.	Choose the correct choice from the following
A) 180 times B) 381 times C) 155 times D) 392 times E) 150 times

Rationale: "time difference is 1 hr , 22 min , 49 sec = 4969 sec . so , light glows floor ( 4969 / 32 ) = 15582 times . answer : c"
Answer: C