Question $9(1$ point$)$

Consider this code fragment:

$a=[1,5,3,7,2,9,6]$

$b=a[1$:$4]$

What does $b=a[1$:$4]$ do$?$

It assigns $[1,5,3]$ to b$.$

It assigns $[5,3,7,2]$ to b$.$

It assigns $5,3,7$ to $b.$

It assigns $[1,5,3,7]$ to b$.$