"Consider the following $4$ options on TSLA: $(1)1-$year $30-$delta call, $(2)1-$year $30-$delta put, $(3)2-$year $70-$delta put, $(4)2-$year $70-$delta call.

$($a$)$ Which of the $4$ option's strike price is the closest to the strike price of a $1-$year $70-$delta call?

$($b$)$ If we are long $1$ million shares on each of the options and want to neutralize the delta exposure of each option contract separately with TSLA stock, which of the $4$ option contracts needs the most long stock position to neutralize its delta?

$($c$)$ which of the $4$ option contracts needs the most short stock position to neutralize its delta?

$($d$)$ What's the total delta of the portfolio that includes $1$ million shares long position in each of the $4$ option contracts

$($Answer the questions using a clean integer number with no decimal, no dots, no parentheses$)"$