Concept: This question tests your knowledge of the characteristic floral features of the plant family Liliaceae, often referred to as the 'lily family'.

Why (C) is correct:
The Liliaceae family typically has a tricarpellary ovary, meaning it is composed of three carpels. Therefore, the ovary is three in number (or made of three fused carpels), not six. The number 'six' is characteristic of the tepals and stamens, but not the ovary.

Why other options are wrong:

• (A) Tepals are six in number $(3+3)$: This is a correct floral character of Liliaceae. They have a perianth with six tepals, often arranged in two whorls of three.
• (B) Stamens are six in number $(3+3)$: This is also a correct floral character. Liliaceae typically have six stamens, arranged in two whorls of three.
• (D) Syncarpous superior ovary is present: This is a correct floral character. The ovary in Liliaceae is syncarpous (carpels fused) and superior (positioned above the attachment of other floral parts).

Common Mistake: Students often confuse the number of tepals and stamens with the number of carpels, especially since 'six' is a prominent number in other floral parts of Liliaceae.

NEET Tip: Remember the general floral formula for Liliaceae: $Br\text{ or }Ebr,\oplus ,\text{ bisexual},P_{(3+3)},A_{(3+3)},G_{(3)}\text{ superior}$. The subscript '3' for G (Gynoecium) indicates three carpels.

Correct Answer: (C)