No, this sentence is not a verb phrase, because the subject is not part of the verb phrase here.
Here's why. The subject is "I," the verb is "believed," and everything following the verb ("every word he said") forms the object of the verb. By definition, a verb phrase is one verb + its various objects or modifiers. Here, "every word he said" operates as one single object (it's not just one word, it's EVERY word, and it's not just every word, it's every word HE said). But the subject is separate from the verb phrase, so the entire sentence is not a verb phrase (it's a subject + a verb phrase).
The "Golden Dawn" tangerine was a new variety of tangerine developed by Luis. Golden Dawns were <em>"seedless, very juicy, and very resistant to cold weather." </em>
For he thinks that this kind of friendship can exist only when one spends a great deal of time with the other person, participating in joint activities and engaging in mutually beneficial behavior; and one cannot cooperate on these close terms with every member of the political community.
I believe b, because then is considered a transition word
