images attached just doing practice questions need help.

"The correct Canadian exchange rate is 1:1 with the $US." This statement is Select one: C) a. true. C) b. true, because the USA is our biggest trading partner. 0 c. false. because the exchange rate is set by the market. A left (up)ward shift of an Aggregate Supply curve could be caused by Select one: O a. workers accepting a reduction in their wages. O b. an increase in worker productivity. O c. The Bank of Canada engaging in an expansionary monetary policy. O d. inflationary pressures that cause wages to rise