Given averages 2, 5, 8, 11, 14, 17…..41, 44, 47, 50.

The difference between any two numbers written in continuos sequence is 3.

we know the formula

The average of consecutive number =$\frac{\mathrm{First} \mathrm{number}+\mathrm{Last} \mathrm{number}}{2}$

Here,

First number= 2 and Last number =50

∴ Required average

$$\begin{gathered} =\frac{2+50}{2} \\ =\frac{52}{2} \\ =26 \end{gathered}$$

Hence, Option A is correct.