This is not correct; because, as specifically stated in the hypothetical, you are in point-of-fact being offered a choice.
Being, you have the choice not to go to Omicron Ceti III.
Here is the premise again:
"If YOU had the option to live on Omicron Ceti III, and live the life and lifestyle as provided by the spores; would you?"
There is your choice.
You have the option not to live on Omicron Ceti III; and therefore, not become infected by the spores.
Reading comprehension is a struggle for some folks.