Which of the following programs will output $[1,4,9,0]?$

squares $=[9,4,1]$

squares $=$ squares.sort$()$

squares.append$(0)$

print$($squares$)$

squares $=[9,4,1]$

squares.sort$()$

squares.extend$(0)$

print$($squares$)$

squares $=[9,4,1]$

squares.append$(0)$

squares.sort$()$

print$($squares$)$

squares $=[9,4,1]$

squares.sort$()$

squares.append$(0)$

print$($squares$)$