Consider the following limit order book for a stock:

$\backslash$table$[[$Bid$,$Ask$],[$Shares$,$Price,Shares,Price$],[1500,40\mathrm{.}50,1000,40\mathrm{.}52],[1000,40\mathrm{.}46,1100,40\mathrm{.}54],[500,40\mathrm{.}44,1400,40\mathrm{.}55],[2200,40\mathrm{.}40,1200,40\mathrm{.}60]]$

You place and execute a market sell order for $2000$ shares. What is your trade$-$weighted average execution price for this transaction?

$$40\mathrm{.}52$

$$40\mathrm{.}50$

$$40\mathrm{.}53$

$$40\mathrm{.}48$

$$40\mathrm{.}49$