Question

Under certain conditions scientists have obtained cell-like structures. These are known as:
A. Prebiotic soup   
B. Coacervates
C. Protists         
D. Microbes

Answer 1

Hint: Coacervates are tiny liquid droplets of two immiscible liquid phases, often caused by the encounter of macromolecules with opposite charges or sometimes by the association of hydrophobic proteins. Usually, the process of coacervation is divided into two groups: simple and complex coacervates. 
Complete Step-by-step answer:

Coacervates were formed during the chemical evolution of life. They are droplets composed of liquid condensates that are linked to lipids, proteins, and also nucleic acids organised in the form of colloids. Coacervates are big colloidal cells like aggregates of complex organic matter. The huge organic molecules synthesise abiotically on primitive earth formed a big colloidal aggregate or coacervates.
Prebiotic soup or primordial soup is the hypothetical set of conditions that exist on the Earth around 4.2 to 4.0 billion years ago due to the combination of chemicals that make up nucleotides and amino acids, which then make nucleic acids and proteins respectively.
Protists are simple eukaryotic organisms that are fungi or neither animals nor plants. Protists are single cells but can also be found as a colony of cells. Most protists are alive in the water, in damp terrestrial ecosystems, or even as parasites.
Microbes are organisms that are too tiny to be seen without using a microscope, so they include things such as archaea, bacteria, and single-cell eukaryotes — cells that have a nucleus, like a paramecium or an amoeba. Sometimes we name viruses, and microbes too.
Therefore the correct answer is Option B.
Note: Coacervate micro-droplets generated by the liquid-liquid phase separation are increasingly used to imitate the dynamical organisation of membrane-less organelles observed in living cells. Designing synthetic coacervates able to be formed and disassembled with better spatiotemporal control remains challenging.