The type of discounting strategy that the pet supply company used is the quantity discounting strategy.
Quantity discounting strategy is a form of discounting strategy where an incentive is given to the buyers and this then brings about a reduction in cost when the customer buys a larger quantity of the goods.
Quantity discounting strategy is used to entice customers so that they'll be able to buy in bulk. This is the same strategy that's used by the pet supply company.
In conclusion, the correct option is the quantity discounting strategy.
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