Answer:
While Muslims are found on all five inhabited continents, more than 60% of the global Muslim population is in Asia and about 20% is in the Middle East and North Africa. However, the Middle East-North Africa region has the highest percentage of Muslim-majority countries.
Explanation:

The fragment that is made up of a complete predicate is option A. "could not be heard above the voices in the hallway"
In grammar, the predicate is defined as the part of the sentence that contains the verb and gives information about the subject.
Option A is the only option that contains a verb, in this case "could" and it is providing information about a subject we don´t know. The only options lack verbs,
last week the performance <u>was </u>cancelled, leaving the poor yada yada you get it
. It was a struggle for his body to survive ,but only did so because of the determination of his will and his spirit, which would not permit him to surrender to the hate which apartheid had imposed and imprisoned him