Suppose that the interrupt sources Timer $2$ overflow $($TOV$2),$ Timer $0$ clear timer on compare match $($CTC$),$ external interrupt $0($INTO$),$ external interrupt $1($INT$1),$ and the UDR empty $($UDRE$)$ serial interrupt are enabled for the ATmega$32.$

Match the interrupt source with its position in the order that these interrupt sources are serviced if they occur at the same time.

$1$ is the first interrupt source serviced

$2$ is the second interrupt source serviced

$5$ is the last interrupt source serviced

$1$

$2$

$3$

$4$

$5$

$[$Choose$]$

$[$ Choose $]$

Timer $2$ Clear Timer on Compare Match $($CTC$)$ Interrupt

External Interrupt $0($INTO$)$

Timer $2$ Overflow Interrupt

Timer $0$ Overflow Interrupt

Receive Complete Interrupt

Transmit Complete Interrupt

Timer $0$ Clear Timer on Compare Match $($CTC$)$ Interrupt

External Interrupt $1($INT$1)$

UDR Empty Interrupt