7. In a cube, the midpoints of three edges passing through vertex $A$ are $E , F , G$ respectively. After cutting off the triangular pyramid $A - E F G$ from the cube, the front view of the orthogonal projection of the resulting polyhedron is shown in the figure on the right. Then the corresponding side view is (\\
\includegraphics[max width=\textwidth, alt={}, center]{89c484da-317d-4cdd-ab23-c55896c9dc5c-1_245_205_2751_1959}

\begin{figure}[h]
\begin{center}
\captionsetup{labelformat=empty}
\caption{A.}
  \includegraphics[alt={},max width=\textwidth]{89c484da-317d-4cdd-ab23-c55896c9dc5c-2_200_196_131_257}
\end{center}
\end{figure}

\begin{figure}[h]
\begin{center}
\captionsetup{labelformat=empty}
\caption{B.}
  \includegraphics[alt={},max width=\textwidth]{89c484da-317d-4cdd-ab23-c55896c9dc5c-2_195_195_131_675}
\end{center}
\end{figure}

\begin{figure}[h]
\begin{center}
\captionsetup{labelformat=empty}
\caption{C.}
  \includegraphics[alt={},max width=\textwidth]{89c484da-317d-4cdd-ab23-c55896c9dc5c-2_195_190_131_1153}
\end{center}
\end{figure}

\begin{figure}[h]
\begin{center}
\captionsetup{labelformat=empty}
\caption{D.}
  \includegraphics[alt={},max width=\textwidth]{89c484da-317d-4cdd-ab23-c55896c9dc5c-2_195_193_131_1631}
\end{center}
\end{figure}