What are the interrupt flags that are used$/$monitored for each of the five interrupt sources below to determine if it $($interrupt source$)$ nceds to be serviced? Match the interrupt sources to their associated interrupt flags.

Interrupt sources $($ATmega$32)$: Timer $2$ clear timer on compare match $($CTC$).$ UDR empty transmission serial interrupt, external interrupt $0($iNTO$)$ faling edge, and Timer $0$ overflow $($TOVD$)$

Tmer $2$ Clear Timer on Compare Match

Timer $0$ Oveflow

Exemal interugt. $0($faling edget

UOR empty transmission serialinterrupt