President Joe Biden has signed a bill into law to mark which date a federal holiday in America?

A. June 13
B. April 16
C. May 14
D. June 19

On 19th June , 1865 , enslaved African-Americans in Texas , US were told they were free. Juneteenth observes the end of slavery in America and on Thursday  June 19 , Biden signed a bill into law to make June 19 a federal holiday in America.