Mitochondria are present in the :–

Options

A. Aerobic organism only
B. Obligate anaerobic organism
C. Aerobic and obligate anaerobic organism
D. Angiosperm only

Answer

### Step-by-Step Solution:

1. **Understanding Mitochondria**: Mitochondria are known as the "powerhouses" of the cell. They are organelles that play a crucial role in producing energy through a process called aerobic respiration, where oxygen and nutrients are converted into adenosine triphosphate (ATP).

2. **Identifying the Function of Mitochondria**: The primary function of mitochondria is to generate ATP, which is the energy currency of the cell. This process requires the presence of oxygen, hence it is referred to as aerobic respiration.

3. **Evaluating the Options**:
- **Option 1: Aerobic Organisms**: This option is correct because aerobic organisms require oxygen for respiration and thus have mitochondria to facilitate ATP production.
- **Option 2: Obligate Anaerobic Organism**: This option is incorrect. Obligate anaerobes do not use oxygen for respiration and therefore do not have mitochondria.
- **Option 3: Robic and Obligate Anaerobic Organism**: This option is also incorrect as it combines aerobic and anaerobic organisms, and anaerobic organisms lack mitochondria.
- **Option 4: Angiosperm Only**: This option is incorrect. While angiosperms (flowering plants) do have mitochondria, the statement is too restrictive as it excludes other aerobic organisms that also possess mitochondria.

4. **Conclusion**: Based on the evaluation, the correct answer is **Option 1: Aerobic Organisms**.