By day，you sight a vessel displaying three shapes in a vertical line. The top and bottom shapes are balls，and the middle shape is a diamond. It could be a（）.

A.bow to the wind
B.beam to the wind
C.stern to the wind
D.with the wind on the quarter

A.an off-center TCG
B.an LCG greater than level vessel LCB
C.a negative GM
D.excessive free surfaces

A.A vessel trawling
B.A vessel trolling
C.A vessel setting nets
D.A vessel tending lines