The true statement regarding sexual reproduction as a method of producing offspring is:
D: It requires more resources and time than asexual reproduction.
Sexual reproduction typically involves the combination of genetic material from two parents, which can be more resource-intensive and time-consuming compared to asexual reproduction, where a single organism can reproduce without the need for a mate.
The other statements are incorrect: A. Sexual reproduction is common among mammals. B. Sexual reproduction is a common method used by many plants. C. Sexual reproduction produces offspring that are genetically diverse, not identical.