UPSC Question

Consider the following statements :
1. Anhydrous sodium carbonate is commonly known as baking soda
2. Baking soda is used in fire extinguishers
3. Bleaching powder is manufactured in Hasenclever plant
Which of the statements given above is/are correct?
(a) 1, 2 and 3 (b) 2 and 3
(c) 3 only (d) 1 and 2