Which one of the following statements regarding the INT

Which one of the following statements regarding the INT (interrupt) and the BRQ (but request) pins in a CPU is true?

1. The BRQ pin is sampled after every instruction cycle, but the INT is sampled after every machine cycle
2. Both INT and BRQ are sampled after every machine cycle
3. The INT pin is sampled after every instruction cycle, but the BRQ is sampled after every machine cycle
4. Both INT and BRQ are sampled after every instruction cycle

Interrupt is sampled after every machine cycle and Bus request pin is sampled after every instruction cycle.