Answer:
A Straight re-buy situation
Explanation:
Straight re-buy situation refers to a state wherein a consumer makes purchases of similar goods, from the same seller, with similar order quantity and for a similar price.
In most of the cases, the purchaser re-orders the previously placed order without paying much heed to the details of such order.
In the given case, the customer purchased supplies from the vendor from whom she had previously purchased, with similar order size and for similar amount. This represents a case of straight re-buy situation.