When interviewing potential suppliers, you should always ask them

The answer would be ask them questions such as What is the full product line of the suppliers.If they do have a minimum order or the payment terms. Also the total costs would be and if there are discounts like for bulk orders and what circumstances the prices will change and when do take ownership of the product and lastly if an insurance certificate is available.

When interviewing potential suppliers, you should always ask them questions if they have the enough amount of products that can be supplied in order to meet the demand of your custoners. Sometimes suppliers promise that they have but in time, they lack these supplies which can cause a decrease on your sales.

Information on the cost of things, quantitative data has to do with numbers, qualitative data uses details such as taste, appearance, what it looks like etc. 

The answer is the second choice,  the rates at which criminals are rehabilitated into society after their sentencing