Chapter 11, Problem 4MCQ

If you wish to graph the disturbance pattern of a wave on a long string at one clock reading, which two variables should you have on the axes?

$\begin{array}{l}\text{a}\text{. }y\text{ and }\lambda \hfill \\ \text{b}\text{. }y\text{ and }x\hfill \\ \text{c}\text{. }y\text{ and }t\hfill \\ \text{d}\text{. }T\text{ and }\lambda \hfill \end{array}$