a. You should give your broker a market order. It will be executed immediately and is the cheapest type of order in terms of brokerage fees.

b. You should give your broker a limit buy order, which will be executed only if the shares can be obtained at a price about 5% below the current price.

c. You should give your broker a stop-loss order, which will be executed if the share price starts falling. The limit or stop price should be close to the current price to avoid the possibility of large losses.

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