Five ships- J, K, L, M, and N- are to be unloaded on five consecutive days beginning on Monday and ending on Friday according to the following conditions:
*Each ship takes exactly one day to unload.
*K must be unloaded on a day preceding the days M and N are unloaded
*L cannot be unloaded on a Tuesday
*M must be the second ship unloaded after J is unloaded. If M is unloaded on Friday, which of the following must be true?
A J is unloaded on Wednesday
B K is unloaded on Tuesday
C L is unloaded on Monday
D L is unloaded on Thursday