Sensex Biggest Single Day Loss

Current context: Sensex and Nifty declined to clock their biggest single-day losses (in terms of points) ever on 9th March 2020.

• While Sensex declined to 1,941 points, Nifty declined to 538 points on the same day.
• All Sensex stocks closed in the red, whereas on Nifty, 46 stocks closed in the red.
• The sharpest fall was registered in banking, consumer durables, metal and oil and gas stocks.
• The previous biggest fall for Sensex was on 24th August 2015 when the index closed 1,624 points lower at 25,741.
• The major factors for the downfall are coronavirus outbreak, plunging of Crude oil prices to 31% after Saudi Arabia slashed prices and set plans for a big increase in crude production and a steep fall in US Bond Yields.

Question: 

Q.1 The biggest single-day losses (in terms of points) ever for Sensex and Nifty was registered on?
a. 1st March 2020
b. 21st January 2020
c. 9th March 2020
d. 2nd December 2019