The rate constant for an isomerisation reaction is `2.079xx10^(-5)sec^(-1)` .If initial concentration of reactant is `sqrt2` M, then calculate rate of reaction after `(10^(5))/(6)` sec. `["ln 2" = 0.693]`

A. 1 M/sec

B. `2.079xx10^(-5)M//sec`

C. `10^(5)M//sec`

D. `0.693xx10^(-5)M//sec`