Which of the following groups contain only biodegradable items?

Options

A. (a) Grass, flowers and leather
B. (b) Grass, wood and plastic
C. (c) Fruit-peels, cake and lime-juice
D. (d) Cake, wood and grass

Explanation

To determine which group contains only biodegradable items, we will analyze each option step by step.

### Step 1: Analyze Option A
- **Items in Option A**: Grass, Flowers, Leather
- **Biodegradable Status**:
- Grass: Biodegradable
- Flowers: Biodegradable
- Leather: Non-biodegradable
...