How should latitude 51°48.7'S be written when preparing an AMVER report?

Correct Answer: Option D — 5149S

AMVER guidelines require latitude to be expressed as a four-digit group (two digits for degrees, two for minutes) followed by North (N) or South (S). Rounding 51°48.7'S to the nearest whole minute results in 5149S, adhering to standard reporting syntax.