68. Arduino is an open-source hardware and software company, project, and usercommunity that designs and manufactures single-board microcontrollers andmicrocontroller kits for building digital devices. Arduino board designs use a variety ofmicroprocessors and controllers. The boards are equipped with sets of digital andanalog input/output (I/O) pins that may be interfaced to various expansion boards orbreadboards and other circuits. Arduino gains its popularity in school because it
(A) is easier to be implemented
(B) is computationally powerful than personal computer is
(C) provides precise computational data
(D) is the standard in industry