Final answer:
Defeated, weakened, and lonely function as adjectives in the given context, describing states or qualities, not as verbs showing action; although 'defeated' and 'weakened' can be past participles derived from verbs in other contexts.
Step-by-step explanation:
The words 'defeated', 'weakened', and 'lonely' may appear to be verbs, but they primarily function as adjectives in this context. These words describe the states or qualities of a noun and are not showing action, which is a key characteristic of a verb. Thus, the correct answer is B. No, they are not verbs. However, 'defeated' and 'weakened' can be past participles when used in other contexts, and past participles can come from verbs. In this case, there is not enough context to determine if they are used as verbs without a sentence structure showing their use as such.