Using the information in the table below, what would be the new divisor for a price$-$weighted index of the four local stocks if ABC declared at $2$:$1$ stock split after market close on t$=1?$

Stock

Price, t$=0$

Price, t$=1$

Shares $($million$)$

ABC

$90$

$92$

$100$

DEF

$45$

$47$

$500$

GHI

$21$

$18$

$1,200$

JKL

$26$

$27$

$450$