Coacervates were

Options

A. Membrane bound sphares containing proteinoids
B. Colloidal aggregrates of carbohydrate and proteins
C. Colloidal aggregrate of carbohydrates only
D. Both (1) and (2)

Answer

### Step-by-Step Solution:

1. **Definition of Coacervates**: Coacervates are droplet-like structures that are formed from colloidal substances. They were first discovered by scientists in 1936.

2. **Composition of Coacervates**: Coacervates consist of a mixture of different substances, primarily proteins and carbohydrates. They are not limited to proteins alone, indicating that they contain a variety of biomolecules.

3. **Formation of Coacervates**: These structures form when colloidal materials, such as proteins and carbohydrates, aggregate together in a fluid medium. This aggregation leads to the formation of larger droplets.

4. **Characteristics of Coacervates**: Coacervates can be described as colloidal aggregates, meaning they are composed of small particles that are dispersed throughout a liquid. This characteristic is crucial for their function in biological processes.

5. **Importance of Coacervates**: Coacervates are significant in the study of the origin of life as they can encapsulate various biomolecules, potentially leading to the formation of primitive life forms.

6. **Correct Option Identification**: Based on the information provided, the correct description of coacervates is that they are colloidal aggregates containing both proteins and carbohydrates, rather than being solely composed of one type of molecule.

### Conclusion:
The correct answer to the question "Coacervates were" is that they are colloidal aggregates containing both proteins and carbohydrates.