Hello,
..........|x^3......|x^2......|x^1......|x^0......
..........|2 .....|-3 ......|k ......|-4 ......
x=3....| .....|6 ......|9 ......|3k+27.
..........|2 .....|3 ......|k+9......|3k+23.
If remainder=-7 then -7=3k+23==>3k=-7-23==>3k=-30==>k=-10
Answer A
