
\documentclass[border=5pt,multi=true]{standalone}
\usepackage{standalone}
\usepackage{ifthen}
\usepackage{microtype}
\usepackage{lineno}
\usepackage{xspace}
\usepackage{caption}
\usepackage{graphicx}
\usepackage{subcaption}
\usepackage{placeins}
\usepackage{rotating}
\usepackage{color}
\usepackage{colortbl}
\usepackage{booktabs}
\usepackage{multirow}
\usepackage{adjustbox}
\usepackage{feynmp}
\usepackage{lipsum}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}
\usepackage{upgreek}
\usepackage{mathtools}
\usepackage{hyperref}
\usepackage{hypcap}
\usepackage{cite}
\usepackage{mciteplus}
\usepackage{tikz}
\usepackage{makecell}
\usepackage{longtable}


\graphicspath{{./figs/}}

\begin{document}
\DeclareGraphicsExtensions{.pdf}
\begin{center}
    \begin{subfigure}{0.45\textwidth}
      
	\begin{tikzpicture}
	 	\node[anchor=south west] at (0,0) {\includegraphics[clip,trim=0 0 0 0,width=\textwidth]{{{figs/rd_tos_fav_mD0_nopull_mpl}}}};
		\node at (0.32\textwidth,0.75\textwidth) {};
	\end{tikzpicture}
    \end{subfigure}
    \begin{subfigure}{0.45\textwidth}
	 
	\begin{tikzpicture}
	 	\node[anchor=south west] at (0,0) {\includegraphics[clip,trim=0 0 0 0,width=\textwidth]{{{figs/rd_tos_fav_delM_nopull_mpl}}}};
		\node at (0.32\textwidth,0.75\textwidth) {};
	\end{tikzpicture}
    \end{subfigure} \\
    \begin{subfigure}{0.45\textwidth}
      
	\begin{tikzpicture}
	 	\node[anchor=south west] at (0,0) {\includegraphics[clip,trim=0 0 0 0,width=\textwidth]{{{figs/rd_tos_sup_mD0_nopull_mpl}}}};
		\node at (0.32\textwidth,0.75\textwidth) {};
	\end{tikzpicture}
    \end{subfigure}
    \begin{subfigure}{0.45\textwidth}
	 
	\begin{tikzpicture}
	 	\node[anchor=south west] at (0,0) {\includegraphics[clip,trim=0 0 0 0,width=\textwidth]{{{figs/rd_tos_sup_delM_nopull_mpl}}}};
		\node at (0.32\textwidth,0.75\textwidth) {};
	\end{tikzpicture}
    \end{subfigure}
  \end{center}
  
\end{document}
