$\"\"$

The function is $\"\"$ .

The general form of sine function is $\"\"$ .

Where $\"\"$ is amplitude and period $\"\"$ .

Compare the function with general form of sine function.

Here amplitude is $\"\"$ .

The period is $\"\"$ .

Therefore, the sine wave starts from $\"\"$ and completes one cycle at $\"\"$ and completes second cycle at $\"\"$ .

The negative sign indicates that the function flips about $\"\"$ -axis.

Observe the graphs:

The graph (C) matches to the characteristics of the function $\"\"$ .

Hence, the graph (C) is the correct choice.

$\"\"$

The graph (C) is the correct choice.