Populatin growth of humans and bacteria follows first order growth kinetics. Suppose 50 bacteria are placed in a flask containing nutrients for the bacteria so that they can multiply . A study at `3.5^(@)C` gave the following results :
`{:("Time (minutes)",0,15,30,45,60),("Number of bacteria",100,200,400,800,1600):}`
Unit of rate constant for first order growth is:

Options

A. `"min"^(-1)`
B. `"min"^(-2)`
C. `"min"^(-3)`
D. unitless

Answer

A