It is a <em>Compound Subject</em>.
Answer
The subjunctive verb mood is meant for expression suggestions, desires, wishes. Subjunctive mood is of three mods in English grammar. This is indicated by an indicative verb such as wish or suggest, paired then with a subjunctive verb.
B. if the colonists are suffering, they need to first submit a petition to Parliament.
The definition of claim means to state or assert that something is the case, typically without providing evidence or proof.. When you make a claim you’re demanding it or saying it’s true.
Hope that hint helped.