It is claimed that two cesium clocks, if allowed to run for 100 yrs without any disturbance may differ by only about `0.02 s`. Then the accuracy of the clock in measuring a time interval of `1s` is ...........
Options:
(a) `10^(-10)`
(b) `10^(-11)`
(c) `10^(-5)`
(d) `10^(-8)`