Answer:
Options C and D are both correct, since 21% = 0.21, lower than 0.75 and higher than negative values. -1.4 is also higher than -2.
Explanation:
Descending order is the highest to lowest.
In option A, -25 is the lowest, so is is incorrect.
In option B, -1.4 is the lowest, so incorrect.
Options C and D are both correct, since 21% = 0.21, lower than 0.75 and higher than negative values. -1.4 is also higher than -2.