If the central bank wants to the economy to grow, it can decrease
a. spending
b. interest rates
c. tax levels

b. interest rates

Explanation:

Interest rates are known as the sum of money which a borrower pays to a lender for borrowing money from him.

The Central Bank helps the economy to grow by lending money to commercial banks at a low interest rate. Furthermore, people also borrow more money from commercial banks because they also give out loan to them at a low interest rate.  Thus, this leads to increase in the amount of money in the economy which makes it to grow.

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.

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