What is the maximum AU size in an ASM disk group?

What is the default AU size of an ASM disk group? What is the maximum AU size in an ASM
disk group?

A.
100KB default, 10TB maximum

B.
256KB default, 1024MB maximum

C.
10MB default, 126PB maximum

D.
64KB default, 1EB maximum

E.
1MB default, 64MB maximum

Explanation:
The AU size is determined at creation time with the allocation unit size (AU_SIZE) disk group
attribute. The values can be 1, 2, 4, 8, 16, 32, and 64 MB.
Refer to here