Identify the ions involved

The reaction is: $5Fe^{2+} + MnO_4^- + 8H^+ \to Mn^{2+} + 4H_2O + 5Fe^{3+}$

We are asked the colors of:

• $Fe^{2+}$
• $Fe^{3+}$

Recall the usual colors of iron ions in aqueous solution

• $Fe^{2+}$ ions are pale green / green.
• $Fe^{3+}$ ions are yellow / yellow-brown (often described simply as yellow in such questions).

Match with the options

So respectively: $Fe^{2+} = \text{Green}, \quad Fe^{3+} = \text{Yellow}$

This corresponds to Option D.

Final answer

$\boxed{\text{D: Green, Yellow}}$

Comparison with stored correct answer

Stored correct answer = D

Our derived answer = D

Hence, the answer matches.