Rob purchases $25,000$ shares of common stock of Super Duper for $$100,000.$ Exactly one year later when the stock is selling for $$5$ per share, Rob sells $5,000$ shares for $$25,000$ and holds on to the remaining $20,000$ shares. Which of the following statements is correct?

Group of answer choices

Rob has a $$5,000$ unrealized capital gain.

Rob has an unrealized capital gain of $$25,000.$

Rob has a $$5,000$ realized capital gain.

Rob has a $$25,000$ realized capital gain.