Write 0.000450.000450.00045 in scientific notation.
0.45times10−30.45 \\times 10^{-3}0.45times10−3
4.5times1044.5 \\times 10^44.5times104
45times10−545 \\times 10^{-5}45times10−5
4.5times10−44.5 \\times 10^{-4}4.5times10−4