Procedure to DROP a 700 GB Table in 10gR2 ?

Folks

In a 3 TB TEST Database in 10gR2, a 700 GB Table needs to be DROPPED.

This Table is present in a Unique Tablespace.

Which of the following Options is Most Advisable w.r.t. performance, speed & ease of Drop:-

1. DROP the Respective Tablespace including contents
2. Truncate the Table -> Drop the Table
3. Drop the Table
4. Some Other Option?

Thanks indeed

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