Answer:
Dogs who need to be adopted → Subject
To educate people about adopting dogs → Purpose
People in the community → Audience
Step-by-step explanation:
I have been able to identify each item.
Dogs who need to be adopted is the Subject because it gives an insight to what is to be learnt or discussed. We discover here that dogs who need to be adopted is the subject.
To educate people about adopting dogs is the Purpose. This true because the sentence begins with "to educate". This means that the purpose of the subject is to educate.
People in the community is the Audience. Audience refers to people. Here, the audience mentioned was specific - "people in the community"