The Electronic Commerce Act allows brokerages to use electronic signatures for:

The correct answer is B. The Electronic Commerce Act allows brokerages to use electronic signatures for agreements common to the trading of real estate. This includes a wide range of agreements such as agreements of purchase and sale, lease agreements, representation agreements, and more. Electronic signatures are legally recognized for most real estate transactions, making them a convenient and efficient option for modern real estate dealings.

Options A, C, D, E, and F are incorrect as they limit the use of electronic signatures to specific types of agreements or exclude some essential agreements common in real estate transactions. It's important to remember that the Electronic Commerce Act in Ontario generally allows the use of electronic signatures for a broad range of real estate agreements.