【单选题】

In classical and medieval times, the study of music shared many features with the discipline of mathematics, such as an interest in proportions, special ratios, and recurring patterns. In the twentieth century, the introduction of twelve-tone music and the widespread use of computers inspired further study into the relationship between musical and mathematical abilities. Musical performances require sensitivity to ratios that are often complex, and to appreciate the operation of rhythms, a performer must have some basic numerical competence.

1. Which of the following can be inferred from the passage
A．The disciplines of music and mathematics originated in classical times.
B．People have long been aware of links between music and mathematics.
C．Both music and mathematics require an understanding of computers.
D．Professional musicians must study mathematics at the university level.