What group of writers refused to answer the questions of huac?

 The correct answer is : Hollywood Ten

Explanation:  Hollywood Ten was a group of writers, producers and directors who did not answer HUAC's questions about possible communist ties. HUAC stands for House Un-American Activities Committee. A committee of the House of Representatives of the United States investigated the denunciations of communist activity in the United States.

abu bakr, was a senior companion and—through his daughter aisha—a father-in-law of the islamic prophet muhammad. abu bakr became the first openly declared muslim outside muhammad's family. abu bakr served as a trusted advisor to muhammad.