How To Select Dropdown In Selenium C#?

Dropdown parallel.cs

[Test]
[TestCase("Monday")]
[TestCase("Tuesday")]
[TestCase("Wednesday")]
[TestCase("Thursday")]
[TestCase("Friday")]
[TestCase("Saturday")]
[TestCase("Sunday")]
[Parallelizable(ParallelScope.All)]
public void ValidateDropDownSelection(string dayOfTheWeek)
{    driver.Navigate().GoToUrl("https://www.lambdatest.com/selenium-playground/select-dropdown-demo");
    SelectElement dropDown = new SelectElement(driver.FindElement(By.Id("select-demo")));
    dropDown.SelectByValue(dayOfTheWeek);
    string actualText = driver.FindElement(By.CssSelector(".selected-value.text-size-14")).Text;
    Assert.True(actualText.Contains(dayOfTheWeek), $"The expected day of the week {dayOfTheWeek} was not selected. The actual text was: {actualText}.");
}