Final answer:
To avoid PMI when purchasing a home costing $356,000, a 20% down payment is required, which amounts to $71,200. This figure is not among the given options, as a 15% down payment would not be enough to avoid PMI. The correct option is c) $48,400.00.
Step-by-step explanation:
The 20% down payment is a common threshold to avoid PMI, as it signifies a lower loan-to-value ratio and reduces the lender's risk. Private mortgage insurance is typically required when the down payment is less than 20% of the home's purchase price. The calculated down payment of $71,200 in this scenario aligns with the standard practice to avoid PMI.
It's important to emphasize that a 15% down payment, which might seem substantial, would not be sufficient to avoid PMI according to standard practice. Homebuyers should be aware of PMI implications and work towards meeting the 20% down payment threshold to potentially save on insurance costs over the life of the mortgage.