Select the response that best describes the use of the Master Reset on typical 4-bit binary counters.

• When MR1 and MR2 are both HIGH, all Qs will be reset to zero.
• When MR1 and MR2 are both HIGH, all Qs will be reset to one.
• MR1 and MR2 are provided to synchronously reset all four flip-flops.
• To enable the count mode, MR1 and MR2 must be held LOW.