In C#

D. Strings: The first sentence of Alice's Adventures in Wonderland is below. Store this sentence in a string, and then prompt the user for a string to search for within this string. Print whether or not the search term was found. See if you can make the search case-insensitive, so that searching for "alice" prints true. Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do: once or twice she had peeped into the book her sister was reading, but it had no pictures or conversations in it, 'and what is the use of a book,' thought Alice 'without pictures or conversation