QUESTION 19 A call auction is be a better mechanism than continuous trading in order to clear the market when: O a. The traded security is overvalued. O b. The traded security is undervalued. OC. The traded security is very liquid. O d. The traded security is very illiquid. QUESTION 20 In oral auctions, the open-outcry rule refers to: O a. Traders must publicly express all bids and offers so that all traders can act on them. Ob. Acceptances must be expressed publicly. OC The market is open from 9:30am to 4:00pm. O d. All of the above Only a. and b. Of. Only b. and e