B: Petroleum is the answer it makes up about 95% of the exports of Venezuela
.How much will it cost to train the staff to effectively use the machine?
.How many patients will they need to treat in order to pay for the machine?
.Will it provide a significant benefit to the neighborhood or should they spend their money on something else that might serve the population better?
.Will they have to give up a crucial health service in order to have the dialysis machine in the clinic?
Depends some don't want to let go of the past, others it could be they are scared of being judged for what their ancestors did. They also might have PTSD this might give them flashbacks and scary dreams about things they might have seen.
In absentee voting a person obtains a ballot from his county election officer either in person beforehand or by mail.
B is the answer to me i guess