please answer ASAP

1. b. d. Which of the following Provinces has the least rate of PST? Ontario Quebec Alberta Saskatchewan Which of the following is considered a challenge caused by progressive taxing system? Complexity b. Family Unit Problems Reduced tax revenue d. All of the above 2. a c. 3. a. b. c. d. Which of the following is not an instalment date for an individual paying taxes? March 15 May 15 June 15 September 15