Joann\textquotesingle s birthday in $$2020$$ was May $$10$$\textsuperscript{th}, which was Sunday. Elizabeth\textquotesingle s birthday in $$2020$$ was June $$21$$\textsuperscript{st}. What day of the week is Elizabeth\textquotesingle s birthday on? 
选项为:A:Thursday  B:Saturday  C:Sunday  D:Tuesday  请回答其中一个选项.