Woman gives birth to a son who has type a blood. she has type ab blood. which of the following can be concluded from this about her parents' blood types?

the dad of her son would have to be A, or AB. but her parents could have AB,A,

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

i need