The following are signal words for which type of organizational pattern: first, then, next, finally, above all, especially?
a. cause/effect
b. problem/solution
c. compare/contrast
d. fact/evidence

The correct answer is B. Problem/solution. 

The words "first, then, next, finally, above all, especially" are signal words for an organizational pattern of problem-solution. After the problem is presented, steps for the solution will be enumerated. Hence the use of such signal words.  

  if identical version of a bill are not passed in both houses, a compromise must be made.