How many nanoseconds are in 2 milliseconds2 \text{ milliseconds}2 milliseconds?
2,000 ns2,000 \text{ ns}2,000 ns
20,000 ns20,000 \text{ ns}20,000 ns
2,000,000 ns2,000,000 \text{ ns}2,000,000 ns
0.000002 ns0.000002 \text{ ns}0.000002 ns