In Calculating Gross Domestic Product, Statistics Canada Uses the Sum

In calculating gross domestic product, Statistics Canada uses the sum of the market value of final goods and services produced.This means that Statistics Canada

A) simply counts the total number of goods produced in the market place and then adds them up.
B) values goods at their market prices, multiplies them by the quantity produced, and then adds them up.
C) simply counts the total number of goods and services produced in the marketplace and then adds them up.
D) values goods and services at their market prices, multiplies them by the quantity produced, and then adds them up.
E) values goods based on surveys of Canadian people, in which they're asked to value different products, multiplies the resulting values by the quantities produced and then adds them up.