Explanation:

Here's a breakdown of the options:

- Agnosticism: This is the belief that the existence or non-existence of any deity is unknown or unknowable. It's more about doubt than disrespect.

- Pantheism: This is the belief that everything composes a god or that the universe is a manifestation of God. It doesn't imply irreverence.

- Theism: This is the belief in the existence of at least one deity. It typically involves reverence, not irreverence.

- Blasphemy: This refers to irreverent behavior or speech towards anything held sacred, especially religious beliefs or deities. It directly implies disrespect.