Answer:
B. taking action in support of a cause
here is the dictionary definition for advocacy
<em>"public support for or recommendation of a particular cause or policy"</em>
Russians comprised approximately one third of Brazil's European immigrant population
.
C. is the answer because it is an example of a person being a Good Samaritan, essentially.
Most likely the answer is <u>(A) Brazil </u>because the rainforest is in Brazil
