Answer:
The best option of the four is d. let the team know you have a possible solution but that you are first interested to hear what they think.
Step-by-step explanation:
Being in a team involves working together and hearing what everybody has to say. Option A is not right because you expect the team to arrive at your solution instead of being open to other opinions. Option B is not right because you haven't given the team a chance to give their opinions and Option C is not right because your solution may actually be the best one and there may be no need to "generate a better one."