Choose the option that best explains the confusing sentences and mark the correct alternative.
"One morning I shot an elephant in my pajamas. How he got into my pajamas I'll never know".

I.The man shot an elephant while he was wearing his pajamas.
II.The man shot an elephant that was wearing his pajamas.
III.The man shot an elephant because it was wearing his pajamas.
IV.The man shot an elephant but was wearing his pajamas.