English only please

Create an equivalent expression for 1.4 cubed over 1.2 raised to the fourth power all raised to the power of negative six.

1.4 cubed over 1.2 squared
1.2 squared over 1.4 cubed
1.4 to the eighteenth power over 1.2 to the twenty-fourth power
1.2 to the twenty-fourth power over 1.4 to the eighteenth power