Topic because the theme is the message. The topic is what it’s about.
A procedural text is a text that clearly explains step by step which is the correct way of doing something. These steps are part of a process that must be followed in order to make sure the procedure is right. In this light, the word from the excerpt that helps to signal that the text is procedural is option C: process.
This is a somewhat common phrase that simply means there's more to a particular combination of people that "meets the eye"--that one person is responsible for far more than their traditional title implies.
The best option will be the B. “to dissolve the political bands”. This is a figurative language.