Concept:
In Jain philosophy, right knowledge is very important for liberation.
Jainism accepts different forms of knowledge, including higher forms of direct knowledge.
Important forms of right knowledge include:
\[
\text{Avadhi Jnana}
\]
\[
\text{Manahparyaya Jnana}
\]
\[
\text{Kevala Jnana}
\]
Step 1: Check Avadhi.
Avadhi Jnana means clairvoyant knowledge.
It is accepted as a valid form of knowledge in Jainism.
So:
\[
A = \text{Correct}
\]
Step 2: Check Anadhyavasaya.
Anadhyavasaya means indefinite or unclear cognition.
It is not regarded as right knowledge.
So:
\[
B = \text{Incorrect}
\]
Step 3: Check Manahparyaya.
Manahparyaya Jnana means telepathic knowledge or knowledge of another person's mental states.
It is accepted as right knowledge in Jainism.
So:
\[
C = \text{Correct}
\]
Step 4: Check Viparyaya.
Viparyaya means wrong cognition or error.
It cannot be right knowledge.
So:
\[
D = \text{Incorrect}
\]
Step 5: Check Kevala.
Kevala Jnana means perfect knowledge or omniscience.
It is the highest form of knowledge in Jainism.
So:
\[
E = \text{Correct}
\]
Step 6: Final conclusion.
The right forms of knowledge are:
\[
A,\ C,\ E
\]
Hence:
\[
\boxed{\text{(C) A, C and E only}}
\]