# Which of the following is not true?

$\begin{array}{1 1}(a)\;\text{The food web depicts 2 trophic levels}\\(b)\;\text{Mouse and grasshopper occupy the same trophic level} \\(c)\;\text{All organisms except grass are consumers}\\(d)\;\text{Predators prefer multiple preys}\end{array}$

The food web depicts 2 trophic levels is not true.
Hence (a) is the correct answer.