In SQL, which command is used to change a table's storage characteristics?

In SQL, the command used to change a table's storage characteristics is ALTER TABLE. The ALTER TABLE statement allows you to modify an existing table, which can include changes to the table's structure, storage, or other attributes.

Option B: MODIFY TABLE is not a standard SQL command.
Option C: CHANGE TABLE is also not a standard SQL command.
Option D: "None of these" is incorrect because ALTER TABLE is the correct command for this purpose.

So, the correct answer is Option A: ALTER TABLE.