(e) What is the meaning of the following mark?1 pointA. gradually decrease the tempoB. gradually increase the tempoC. suddenly decrease the tempoD. suddenly increase the tempo

To answer the question step by step:

1. Identify the mark being referred to in the question. Since the mark itself is not provided in the text, we need to infer it from the context of the options given.
2. Analyze the options:
   • A. gradually decrease the tempo
   • B. gradually increase the tempo
   • C. suddenly decrease the tempo
   • D. suddenly increase the tempo
3. Determine the musical terms that correspond to these descriptions:
   • Gradually decrease the tempo: Ritardando (rit.)
   • Gradually increase the tempo: Accelerando (accel.)
   • Suddenly decrease the tempo: There is no common musical term for a sudden decrease in tempo.
   • Suddenly increase the tempo: There is no common musical term for a sudden increase in tempo.
4. Since the question asks for the meaning of a mark, and the most common marks related to tempo changes are ritardando and accelerando, we can infer that the mark in question is likely one of these.
5. Based on the options provided, the most likely mark being referred to is "accelerando," which means to gradually increase the tempo.

Therefore, the correct answer is: B. gradually increase the tempo