Creepers are plants that have weak stems and grow along the ground or climb on other structures for support. They are commonly known for their ability to creep or crawl, hence the name creepers. These plants are excellent for covering fences, walls, or trellises, adding a touch of greenery and beauty to any space.

The correct answer to this question is option 'D' - both (b) Bottle Gourd and (c) Cucumber are examples of creepers. Let's explore why these plants are considered creepers.

1. Bottle Gourd:
- Bottle gourd (Lagenaria siceraria) is a popular vegetable plant that belongs to the gourd family.
- It is characterized by its long, trailing vines that sprawl across the ground or climb on nearby structures.
- The stems of the bottle gourd are weak and cannot support themselves upright, so they rely on other objects for support.
- This plant is often trained to grow on trellises or fences to save space in the garden and improve airflow around the plant.
- The vines can grow up to several meters in length, making them typical examples of creepers.

2. Cucumber:
- Cucumber (Cucumis sativus) is another well-known vegetable plant that falls under the category of creepers.
- It has long, slender vines that crawl along the ground or climb on structures using tendrils.
- The stems of cucumber are not strong enough to stand on their own, and they require support to grow vertically.
- Many gardeners use trellises or stakes to train cucumber vines, allowing them to grow upwards and save space in the garden.
- Cucumber plants can spread over a large area, making them ideal examples of creepers.

In conclusion, both bottle gourd and cucumber are examples of creepers. They have weak stems that crawl or climb on other structures for support. These plants are commonly grown in gardens or agricultural fields and are appreciated for their delicious fruits and ornamental value.