Final answer:
Gate A can be operated at a higher frequency than Gate B due to its lower delay values.
Step-by-step explanation:
In digital electronics, tplh and tphl represent the propagation delays of a gate. tplh is the time delay for the output to switch from low to high, while tphl is the time delay for the output to switch from high to low. A lower delay value indicates a faster gate.
Based on the given information, Gate A has tplh = tphl = 6 ns, while Gate B has tplh = tphl = 10 ns. Since Gate A has a lower delay value, it can operate at a higher frequency compared to Gate B.