Multiple choice questions for php

Question 3 Which returns a format such as Sep.11, 2021? B) date('M.j. Y'); C) date('M.D. yyyy"); D) date('m.D. y'); Question 4 Given the following, which results TRUE in: if (!$x) A) $x = 0; B) $x = "0"; C) $x = ""; E) All above Question 6 Which is not an example of complex data ? A) Array C) Float D) Object Question 9 Which does not have an alternate form (eg, using the colon)? OA) if C) for D) functions Question 10 Which function is used to sanitize input? A) htmlspecialchars() B) number_format() D) filter_var()