If product y is an inferior good, a decrease in consumer incomes will rev:
a. make buyers want to buy less of product y.
b. shift the demand curve for product y to the right.
c. shift the demand curve for product y to the left.
d. not affect the sales of product y.

Option (B) is correct.

Explanation:

Inferior good is a good whose demand is inversely related with the consumers income. This means that if there is an increase in the income of the consumer then as a result demand for normal good increases but demand for inferior goods decreases.

On the other hand, if there is a decrease in the income of the consumer then as a result demand for normal good decreases but demand for inferior goods increases.

Hence, decrease in consumer incomes will increase the demand of product Y and the demand curve for product Y to the right.  

the correct answer would be b, when, queen, calder hall and london.

explanation:

we always capitalize words when a paragraph or sentence is starting, when an important name is used, when a place is being written, or simply when a noun is used, etc. so in this sentence, sentence is starting from 'when', so it will be written in capital letters. secondly, queen is considered to be an important person, so it will also be written in capital letter. next, the name of the town is mentioned, i-e calder hall, which will also be written in capital letters. in the last,   city name is being used, 'london', which will also be written in capital letters. so option b is the most appropriate one.