What does the information about the sheik of Dubai show about the Palm Islands?

A.
The Palm Islands were built to help Dubai make money.

B.
The Palm Islands could not be built in the desert climate.

C.
The Palm Islands were constructed by thousands of workers.

D.
The Palm Islands contained a large portion of Dubai's oil.

C. The information about the sheik of Dubai does not provide any indication about the purpose or financial motivation behind the construction of the Palm Islands. However, it does mention that the sheik employed thousands of workers to build the islands, implying that they were constructed by a significant workforce. The information does not mention anything about the presence of oil on the Palm Islands.