Answer:
C, tell Zane how he feels about his participation in the project
Explanation:
What Jose did was to approach Zane and accuse him of being lazy. This approach would have not achieved much as it was a blame based and done in an unfriendly, hostile manner. Zane would have probably backed off totally, even if the accusation was justified.
Jose should have tried to talk to Zane in private first. He should have explained his feelings towards Zane's participation and they should have tried to work out a solution together. This way, neither of them would have felt attacked and a fair solution to their problems might have been found.