Hi hi and show me how to do it, ill mark as brainliest!

order the following numbers written in scientific notation from least to greatest:
1.7 × 10-3, 7.7 × 10-3, 6.7 × 10-3, 2.7 × 10-3

a.
1.7 × 10-3, 2.7 × 10-3, 6.7 × 10-3, 7.7 × 10-3
b.
7.7 × 10-3, 6.7 × 10-3, 2.7 × 10-3, 1.7 × 10-3
c.
1.7 × 10-3, 2.7 × 10-3, 7.7 × 10-3, 6.7 × 10-3
d.
1.7 × 10-3, 6.7 × 10-3, 2.7 × 10-3, 7.7 × 10-3