Reproduction is a characteristic but not an all-inclusive defining property of living organisms. Which of the following statements can be used to justify this fact regarding living organisms?
I. Some organisms are capable of reproducing by both sexual and asexual means.
II. The usage of the term ‘reproduction’ is not clear in the context of unicellular organisms.
III. Many organisms like mules do not reproduce at all.
IV. No non-living object is capable of reproducing or replicating by itself.

1. Only I and IV
2. Only II and III
3. Only I, II and III
4. Only II, III and IV