Identify the set comprising plants that produce bisexual flowers :

The correct option is Mustard, Rose, Petunia.

Bisexual Flowers:
Flowers that contain both male (stamen) and female (carpels/pistil) reproductive organs within the same flower are known as bisexual or hermaphrodite flowers. Examples include mustard, rose, petunia, hibiscus, and china rose.

Unisexual Flowers:
Flowers that contain either only stamens (male) or only carpels (female) reproductive organs are known as unisexual flowers. Examples include papaya, watermelon, cucumber, and corn (maize).

Analysis of Options:

1. Cucumber, Papaya, Rose: Cucumber and Papaya produce unisexual flowers, so this set is incorrect.

2. Mustard, Rose, Petunia: All three plants produce bisexual flowers. Therefore, this set is correct.

3. Corn, Cucumber, Petunia: Corn and Cucumber produce unisexual flowers, so this set is incorrect.

4. Corn, Papaya, Mustard: Corn and Papaya produce unisexual flowers, so this set is incorrect.