It is observed that some of the spectral lines in hydrogen spectrum have wavelengths almost equal to those of the spectral lines in $$\text{He}^+$$ ion. Out of the following the transitions in $$\text{He}^+$$ that will make this possible is

A

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

B

$$n = 6$$ to $$n = 4$$

C

$$n = 5$$ to $$n = 3$$

D

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