Take a position and defend it. Do all three parts - Part A, B & C
Part A - Is it ethical for you to hire away from your competitor a secretary who may have overheard something that will be useful to you?
Part B - Is it ethical for you to send an attractive employee to a bar where your competitor's programmers hang out in the hope of getting the information you want?
Part C - Is it ethical for you to have someone hunt up and read everything published by your competitor's programmers in case they may have let slip something that will help you?