157- The velocity–time graph of two moving objects A and B, both moving along the x-axis, is shown below. During the time that object A moves in the positive x direction, how many meters is the displacement of object B? [Figure: Velocity-time graph with V(m/s) on vertical axis and t(s) on horizontal axis. Object B is a straight line starting from 16 m/s decreasing, object A starts from 0, goes to 18 on time axis, then decreases to $-8$ and continues to $-20$. The graph shows values 16, 18 on axes and $-8$, $-20$ marked.]
[(1)] 186
[(2)] 192
[(3)] 255
[(4)] 228
\textbf{157-} The velocity–time graph of two moving objects A and B, both moving along the x-axis, is shown below. During the time that object A moves in the positive x direction, how many meters is the displacement of object B?
\textit{[Figure: Velocity-time graph with V(m/s) on vertical axis and t(s) on horizontal axis. Object B is a straight line starting from 16 m/s decreasing, object A starts from 0, goes to 18 on time axis, then decreases to $-8$ and continues to $-20$. The graph shows values 16, 18 on axes and $-8$, $-20$ marked.]}
\begin{itemize}
\item[(1)] 186
\item[(2)] 192
\item[(3)] 255
\item[(4)] 228
\end{itemize}