(A) says that before deciding on a location for a trip (the big thing), most people need to do a lot of financial planning first (the details/groundwork). This is the opposite of the argument in the stimulus. (A) says people need to start with the details before deciding the big thing.

(B) says that you should prepare the soil before deciding what vegetables to plant. In other words, you should lay the groundwork before making the big decision of what to plant. This is the opposite of the argument, which says that you should make the big decision (the crime) before laying the groundwork (coming up with circumstances and clues).

(C) says that when making the big decision (building plans), architects need to be thinking about the details (method of construction). This is different from the argument in the stimulus, which says you should make the big decision before filling in the details.

(D) doesn’t talk at all about where one should start in solving a mathematical problem. The argument in the stimulus is about chronology, so (D) doesn’t apply a similar principle.

(E) says that to make a tennis shot, you should start with where you want the shot to go (the big thing), and then figure out where you need to be to execute the shot (the details/groundwork). This is the same reasoning used in the stimulus.