You have a table where keys range from “A” to “Z”, and you want to scan from “D” to “H.” Which of
the following is true?

A.
A MultiGet must be issued for rows D, E, F, G, H.

B.
The scan class supports ranges via the stop and start rows.

C.
All scans are full table scans, the client must implement filtering.

D.
In order to range scan, raw scan mode must be enabled.

Explanation:
Rather than specifying a single row, an optional startRow and stopRow may be
defined. If rows are not specified, the Scanner will iterate over all rows.
Reference: org.apache.hadoop.hbase.client,Class Scan