Correct Answer - Option 1 : This animal has a shell.
Given statement: This animal has a shell or it isn’t a turtle. This animal is a turtle.
According to the given statement, the logical equivalent statement is: this animal is a turtle because this animal has a shell.
Let's check each option:
1) This animal has a shell. → True (Because logical equivalent sentence for the given statement is this animal is a turtle because this animal has a shell.)
2) This animal likes to swim. → False (It is not given in the statement).
3) This animal doesn’t have a shell. → False (Because logical equivalent sentence for the given statement is this animal is a turtle because this animal has a shell.)
4) None of the above. → False (As option 1 is true)
Hence, this animal has a shell is the correct answer.