JEE Main 2018 Chemistry question

How long (approximate) should water be electrolysed by passing through 100 amperes current so that the oxygen released can completely burn 27.66 g of diborane ? (Atomic weight of B = 10.8 u)

• (A)6.4 hours
• (B)0.8 hours
• (C)3.2 hoursCorrect
• (D)1.6 hours