Answer: Hepatitis A
Step-by-step explanation:
Hepatitis A is a contagious liver infection which is caused by the hepatitis A virus resulting to inflammation of the liver and reduction in its optimal function. Hepatitis A in most cases is acquired through contaminated food or drinks or direct contact with people infected.
Since Ray went on a missionary trip to a developing country and contracted Hepatitis, its likely its Hepatitis A because he was involved in their cultural celebration involving eating their local food or drinks probably prepared in a poor sanitation environment or direct contact with affected persons as this is the way Hepatitis A can be contracted.