A good example of the point in the previous question is Square. The service they provided to small merchants to allow them to accept card payments with a smart phone was an example of ____adoption, while the Square Wallet was an example of ____adoption. The ____ of these two innovations proved to be more successful. (BLJ, pp. 162-163; Kindle, 2704-2711) (Ch. 10The Payments Innovation Challenge) A. bilateral; unilateral; first B. bilateral; unilateral; second C. unilateral; bilateral; first D. unilateral; bilateral; second