When the Market Basket Is Tracked Over Time the Goods

When the market basket is tracked over time the goods within the basket:

A) remain the same, so only changing prices are captured.
B) reflect the typical consumer each year, so it captures how consumers are affected each year.
C) reflect the typical consumer each year, but prices are held constant, so it captures if we are consuming more or less as an economy.
D) remain the same, but some prices are held constant on items that are important to consumers.