In this question, we are asked to identify the reproductive parts of bisexual flowers. Bisexual flowers, also known as perfect flowers, have both male and female reproductive parts.

Option 1 states that the sepals and petals are the reproductive parts of bisexual flowers. However, this is not correct. Sepals and petals are not directly involved in reproduction. Sepals are usually green leaf-like structures that protect the flower in the bud stage, while petals are colorful structures that attract pollinators.

Option 2 states that the anthers and gynoecium are the reproductive parts of bisexual flowers. This is correct. The anthers are the male reproductive parts that produce pollen, which carries the sperm cells. The gynoecium, also known as the female reproductive organs, consists of the pistil, which includes the stigma, style, and ovary. The ovary contains the ovules and it is here that the female gametes are produced.

Option 3 states that the sepals and gynoecium are the reproductive parts of bisexual flowers. This is incorrect, as mentioned earlier, sepals are not directly involved in reproduction.

Option 4 states that the petals and anthers are the reproductive parts of bisexual flowers. This is incorrect, as