Answer:
d. credit union.
Explanation:
According to the specification provided within the question it seems that Tony and his friends are part of a credit union. This term refers to a financial cooperative that is owned and controlled by the members within it, in which the members are given credit at very competitive rates compared to banks or other financial institutions offering loans. Which is exactly what Tony and his friends seem to be part of since they are part of a cooperative that charges them lower interest rates on their loans, therefore defining a credit union.
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