Answer:
All options are correct.
Step-by-step explanation:
We have to find the expression which are in the simplest form.
A.
The expression cannot solve further.
Therefore, the given expression is in the simplest form .
B.
The expression cannot solve further.
The given expression is in the simplest form.
C.
cannot divide
.
The expression cannot solve further.
Hence, the given expression is in the simplest form.
D.
The expression cannot solve further.
The given expression is in the simplest form.
E.
The expression cannot solve further.
Hence, the given expression is in the simplest form.
F.
The expression cannot solve further.
Hence, the given expression is in the simplest form.
Hence, all options are true.