SC

[mandeepak]

In January 1994 an oil barge ran aground off the coast of San
Juan, Puerto Rico, leaking its cargo of 750000 gallons into the
ocean, while causing the pollution of the city’s beaches.
A.leaking its cargo of 750000 gallons into the ocean, while causing the pollution of
B.with its cargo of 750000 gallons leaking into the ocean, and it polluted
C.and its cargo of 750000 gallons leaked into the ocean, polluting
D.while it leaked its cargo of 750000 gallons into the ocean and caused the pollution
of
E.so that its cargo of 750000 gallons leaked into the ocean, and they were polluting.

[pahwa]

Lets take this one by one.

A. Use of while is unclear here. I mean, leaking while causing pollution is wordy. There can be a better way I suppose.

B. Use of IT. What caused pollution? Leakage or oil barge itself. Ignore it.
C. Looks clean. Oild barge ran agorund off and its cargo leaked, resulting its pollution, clearly conveys that the leakage was the reason for pollution.

D. ignore. Wrong construction
E. SO...that is not required. Ignore