In the following sentence, a part of the sentence is underlined. Below are given alternatives to the underlined part, which may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose the option ‘No improvement.'

In the course of the crisis, central banks turned up the liquidity taps as the lender of last resort, but in the light of public anger at the banking sector that caused the crisis, this looked like favorable treatment.

A. Turned down

B. Turned in

C. Turned on