Answer: Personal computers must be a normal good.
Explanation:
Normal good is a type of commodity available in a market, in which the commodity's demand increases as income of the buyers increase. The normal goods posses a positive income elasticity of demand(where demand is directly proportional to income).
I think A if not than B I’m sorry if I’m incorrect
Answer: will increase but this will not affect living standards
Explanation:
GDP is sometimes called an incomplete measure because there are certain measures that it does not include such as the black market.
If firms in the black market shift to the formal sector, they will now be included in GDP which means that GDP will increase.
The living standards of people in the country will probably not change however because the firms involved were simply shifting sectors and are not said to be more or less prosperous as a result. Assuming they remained the same, nothing changes for living standards.