Mobile presents an opportunity for a more targeted marketing message because you have an understanding of context such as time, location, and proximity of the customer.
The correct answer is:
Explanation: When companies talk about the opportunity that mobile presents, they’re often referring to the opportunity that context presents. A better understanding of context–the specific circumstances in which your customers seek you out, such as time, location, and proximity–can help you make your marketing message more targeted, meaningful, and successful.
Read more here: https://support.google.com/partners/answer/6208411