Let's compare the two given quantities, A and B.
Step 1: Identify the given values:
- [tex]\( A = 63 \)[/tex] cm
- [tex]\( B = 6 \)[/tex] m
Step 2: Convert the units to the same measure for an accurate comparison. Since A is in centimeters, we will convert B from meters to centimeters.
1 meter = 100 centimeters, so:
- [tex]\( B = 6 \)[/tex] meters [tex]\( = 6 \times 100 \)[/tex] centimeters [tex]\( = 600 \)[/tex] centimeters
Step 3: Compare the values in centimeters:
- [tex]\( A = 63 \)[/tex] cm
- [tex]\( B = 600 \)[/tex] cm
Step 4: Determine which is greater:
- [tex]\( 63 \)[/tex] cm (A) is less than [tex]\( 600 \)[/tex] cm (B).
Therefore, the greater unit is B.
So, the answer is b B.