What is the best explanation for why digital data is represented in computers in binary? a. the binary number system is the only system flexible enough to allow for representing data other than numbers. b. it's easier, cheaper, and more reliable to build machines and devices that only have to distinguish between binary states. c. it typically takes fewer digits to represent a number in binary when compared to other number systems (for example, the decimal number system) d. it's impossible to build a computing machine that uses anything but binary to represent numbers