Mark the letter A, B, C, or D to indicate the best sentence that is made from the given words and ph...

Pho, a Vietnamese noodle soup, is believed most popular food in Viet Nam.

Pho is a Vietnamese noodle soup is believed to be most popular food in Viet Nam.

Pho, a Vietnamese noodle soup, is believed to be the most popular food in Viet Nam.

Pho, a Vietnamese noodle soup is most believed to be the popular food in Viet Nam.