According to "Calculating the Value of Human Tissue Donation," why did Chris Truitt become an advocate for the tissue-donation business?

A. He was moved to action when his daughter received a lifesaving tissue donation and he wanted to pay the gift forward.
B. He was placed on a wait list for a tissue donation and became frustrated with the lack of services available to those in need.
C. He was moved to action when his daughter was a donor and he saw firsthand how tissue and organ donations transform lives.
D. He learned of the profits that could be made harvesting tissue for cosmetic procedures and wanted a career change.