From the word pairs, select the one that completes the following sentence correctly. Each measure contains a combination of strong and weak , which represent the underlying of the music.

Beats: Pulse.

Explanation:

As per the question, the word pair 'beats, pulse' best completes the given sentence aptly. Then, the sentence reads as:

'Each measure contains a combination of strong and weak beats, which represent the underlying pulse of the music.'

'Beats' represent 'the rhythm that is signaled by a musician' while 'pulse' implies 'beat of music'. Therefore, the statement implies 'a combination of strong and weak rhythmic signals(by the conductor or musician) together represent the intrinsic 'beats'(pulse) of the music'. Therefore, the word pair of 'beats, pulse' is the answer.