Microcontroller development boards are PCBs with additional circuitry to make it more convenient to prototype with and program the chip. Arduino plays an important role with this development task. Which of the following best describes what is Arduino? Select one: a. Arduino is similar to Raspberry Pi, it is a circuit board with the operating system embedded b. Arduino is an actuator that send the signals to the Cloud c. Arduino is an open source device platform, with an active community who are creating compatible development boards and tooling d. Arduino is a micro controller that does the analytics on the edge and then sends the refined signal to the Cloud..