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 J is unloaded on Monday, which of the following must be true?