The following question is followed by few statements. You have to study the question and all the statements given and decide whether the information provided in the statement(s) is sufficient/required to answer the question or not:
If k is an integer and `x(x-k)=k+1`, what is the value of x?
I. `xltk`
II. `x=k+1`
III. `x=3-k`

Options

A. Only statement I is sufficient
B. Only statement II is sufficient
C. Any of the two statements out of I, II and III are sufficient
D. None of the three are required