The given expression is 
By using the law of exponent which states that 
We need to find the equivalent expression for the given expression from the given expressions.
1.
This expression is equivalent to the given expression.
2. 
This expression is not equivalent to the given expression.
3.
This expression is not equivalent to the given expression.
4. 
This expression is equivalent to the given expression.
5. 
This expression is not equivalent to the given expression.
6. 
This expression is not equivalent to the given expression.