You need to make a petition and have a certain amount of people to sign it, (let´s say you need/want 25,000 people to sign it to stop animal abuse, and have no more kill shelters, and stop lab testing on domestic animals.) i know that it´s very specific. Then you can go to the city´s courthouse, give them the official petition document, and ask the judge to give this to whoever is in charge of the city/state. Then you need to keep calling and write a letter to the white house/whoever is in charge to ask them to make a change in what you want them to change, i´m not a good person at explaining things, but i am speaking from my experience.
Petulant is incorrect because it means that the volunteers were bad - tempered and volunteers usually are generous.
Clear is incorrect because it is stating that the volunteers were understanding when they were gathering over 100 boxes of food.
Both compassionate and resolute would be good answers for this question since resolute means determined and compassionate means a feeling of concern towards others. However, compassionate would be a better choice since the volunteers are putting all this effort in to help the physical needs (food) of the people in the local pantry.
Further testing proved conclusively that the cowpox virus was able to build immunity against smallpox. Using his theory, similar vaccines were later created for diseases such as yellow fever, mumps, rubella and tetanus.