Bisexual flowers are common in angiosperms, promoting reproduction efficiency.
Flower reproductive structure analysis:
(A) Asexual - Incorrect: Flowers with reproductive structures are by definition sexual.
(B) Unisexual - Incorrect: This describes flowers having either stamens (male) or carpels (female), not both.
(C) Bisexual - Correct: Flowers containing both stamens (male) and carpels (female) are termed bisexual or perfect flowers.
(D) Dioecious - Incorrect: This refers to plant species having male and female flowers on separate plants.
The correct answer is (C) Bisexual, also known as hermaphroditic or perfect flowers.
A flower with both stamens and carpels is bisexual .
Final Answer:
(C) Bisexual
Match the Column-I with Column-II and choose the correct option:

Match the following:
In the following, \( [x] \) denotes the greatest integer less than or equal to \( x \). 
Choose the correct answer from the options given below:
For x < 0:
f(x) = ex + ax
For x ≥ 0:
f(x) = b(x - 1)2