Answer:
B, A, C
Step-by-step explanation:
Calculating the common ratio for each sequence
A → r = [tex]\frac{40}{160}[/tex] = [tex]\frac{1}{4}[/tex] = 0.25
B → r = [tex]\frac{63}{-21}[/tex] = - 3
C → r = [tex]\frac{12}{8}[/tex] = 1.5
B, A, C ← from least to greatest common ratio