Which of the following statements is true about the UART, $/2$C$,$ and SPI protocols?

$1^{2}C$ and SPI are both capable of half$-$duplex communication modes. All three protocols use a master$-$slave communication architecture UART is an asynchronous protocol, while $1^{2}C$ and $SP$ synchronous protocols UART is capable of supporting multiple devices on a single communication channel, similar to I$\text{'}$C and SPI