The best comparison of foreign policy powers between Congress and the president from the options given is:
C) Congress can declare war, while the president can make treaties.
In the U.S. system, Congress has the power to declare war, as outlined in the Constitution. On the other hand, the president has the authority to negotiate and sign treaties, although such treaties must be ratified by a two-thirds majority in the Senate to take effect.
The other options provided do not accurately reflect the distribution of foreign policy powers. For example, the president commands the military (not Congress), and while Congress does appropriate money, it is the president who appoints diplomats (subject to Senate confirmation, but not as part of the approval process). Moreover, the president does not possess judicial review, which is a power of the judiciary.