Which of the Following Shows a Focus on the Lowest

Which of the following shows a focus on the lowest of Maslow's hierarchy of needs?

A) Joan wants to live in a house with all the modern conveniences so that she may show off her status to others.
B) Frank feels that he is a good salesman because he likes what he does and knows how to do it well.
C) Barbara knows that as a teacher she is a good person because she realizes the importance of imparting knowledge to society.
D) Mark works hard as an attorney only so that he can attract more clients and make more money to pay for food,heat,and shelter for his family.