Explanation:

Analogy: finger: hand :: petal: ________

In this analogy, we are given the relationship between "finger" and "hand" and we need to find a similar relationship between "petal" and another word.

Finger and Hand Relationship:
A finger is a part of the hand. It is connected to the hand and is a smaller component of the hand. The hand consists of multiple fingers. Therefore, the finger is a part or a component of the hand.

Petal and _______ Relationship:
To find the correct word that completes this analogy, we need to find a similar relationship between "petal" and the options given.

Option A: Stem
A petal is a part of a flower. It is a small, colorful, and delicate part of a flower. Just like a finger is a part of the hand, a petal is a part of a flower. The stem is the supporting structure that connects the flower to the plant. It holds the flower and the petals together. Therefore, the correct word that completes the analogy is "stem."

Option B: Flower
While it is true that a petal is a part of a flower, this option does not complete the analogy in the same way as the finger and hand relationship. The analogy is looking for a word that describes the relationship between the petal and another part of the flower, just like the finger is a part of the hand.

Option C: Garden
A garden is a larger concept that includes multiple flowers and plants. It does not complete the analogy in the same way as the finger and hand relationship. The analogy is looking for a word that describes the relationship between the petal and another part of the flower, just like the finger is a part of the hand.

Option D: Bike
A bike does not have a direct relationship with the petal. The analogy is looking for a word that describes the relationship between the petal and another part of the flower, just like the finger is a part of the hand.

Therefore, the correct word that completes the analogy is option A: Stem.