I know it's eithe A or C because the negative slope signifying its zero or first order, but how can I tell which on it is?

2) This reaction has been analyzed by a student (the concentration of the reactant was measured as the reaction went on). The results of the analysis are shown on the graph below on the left. Unfortunately the student who has done the analysis has forgotten to label the axes. Select the proper labels from the four choices below on the right. a) Oy axis is ln[A] and Ox axis is t b) Oy axis is [A]1 and Ox axis is t c) Oy axis is [A] and Ox axis is t d) Oy axis is ln[A]1 and Ox axis is t