You are the project manager managing the setting up of an oil rig in the Pacific Ocean. Which of the following could be a valid constraint when you are doing human resource planning for your project

A．Weak matrix organization structur

B．Unlimited budget since the project is very critical to meet compliance need

C．Oil price increasing above $60 per barre

D．None of the abov

管理的首要职能是：

A．计划职能

B．组织职能

C．领导职能

D．控制职能