The electronic transition in $$\text{He}^+$$ ion that will occur at the same wavelength as that of the $$n = 2$$ to $$n = 1$$ transition in H atom is

A

$$n = 2$$ to $$n = 1$$

B

$$n = 3$$ to $$n = 1$$

C

$$n = 3$$ to $$n = 2$$

D

$$n = 4$$ to $$n = 2$$