How can I click on a specific link? - selenium

Question

I'm making an app (console application) similar to a search engine. The app asks the user for input, then it googles that input and gathers the URLs of the first page of Google results. Then, it asks the user which link does he want to open, for example: "Which link should I open?" and the user should type "First", "Second", "Third", etc. I have managed to get to the point where I gather all URLs, but I don't know how to code the part where I choose which URL I want it to open.
Here's the code:
Console.WriteLine("Search for:"); //User Input
string command = Console.ReadLine();
IWebDriver driver = new FirefoxDriver();
driver.Navigate().GoToUrl("http://www.google.com"); //Opens Firefox, Goes to Google.
driver.Manage().Window.Maximize();
IWebElement searchInput = driver.FindElement(By.Id("lst-ib"));
searchInput.SendKeys(command); //Types User Input in "Search"
searchInput.SendKeys(Keys.Enter); //Hits "Enter"
//Gets Urls
WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(1));
By linkLocator = By.CssSelector("cite._Rm");
wait.Until(ExpectedConditions.ElementToBeClickable(linkLocator));
IReadOnlyCollection<IWebElement> links = driver.FindElements(linkLocator);
foreach (IWebElement link in links)
{
Console.WriteLine(link.Text);
}