John’s grandparents make wine for special occasions. they add a pinch of yeast to crushed grapes. over time, this action releases carbon dioxide, and the results is a homemade wine. what chemical process do the grapes undergo?

clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.

what are the options? add them, then i will be glad to .

i think its both a and b