Which of the following statements is true?
a. you should exercise for at least 20 minutes, five times a week to maintain cardiorespiratory endurance.
b. in order to develop muscular endurance, you should include three 30-minute sessions of anaerobic exercise each week.
c. daily stretching exercises should include a bouncing motion.
d. as long as you include a 5- to 10-minute warm-up in your exercise routine, you don't have to include cooldown exercises as well.

This thinning would materially change the sound of the drum, evidence that although it might continue to be used for its original purpose of music-making or calling people to arms, it would now do so with a different voice. a musical instrument had become a trophy, and the new carvings were in fact branding, a statement of the north’s political dominance over central africa and of allegiance to islam.the drum had come to khartoum at a critical moment in sudanese history. in an audio version, stressing the word "branding" would do what for the listener? emphasize the word's importance and the idea that followsadd emphasis to the following sentencesignal that something important has just been repeatedadd emphasis to the preceding sentence