Polymer materials — plastics made from cellulose-based resins (e.g., cellulose acetate) typically exhibit which combination of properties relevant to engineering and electrical uses?

Introduction / Context:
Cellulose-derived plastics such as cellulose acetate, cellulose acetate butyrate (CAB), and cellulose nitrate historically found wide use in glazing, films, tool handles, and electrical components. Recognizing their property profile helps in selecting materials for transparency, toughness, and insulation tasks in civil and electrical installations.

Given Data / Assumptions:

• Cellulose resins can be compounded for clarity and mechanical strength.
• Electrical properties refer to dielectric strength and insulation resistance.
• Question seeks whether these properties can be achieved simultaneously.

Concept / Approach:

Cellulose acetate and related resins form clear thermoplastics with good optical transmission—often used where glass-like clarity and shatter resistance are desirable. They also offer useful toughness and impact resistance compared with brittle thermosets. Electrically, they are non-conductive and provide good dielectric behavior, making them suitable for insulating housings and components (within their temperature limits). Thus, all three property statements are valid for cellulose plastics when properly formulated and processed.

Step-by-Step Solution:

Verification / Alternative check:

Material data sheets for cellulose acetate show transparency (∼90% transmittance), tensile strength in the tens of MPa, and dielectric strength suitable for many low-voltage uses.

Why Other Options Are Wrong:

Choosing only one property ignores the broad, well-documented capability of cellulose resins; the comprehensive answer is All the above.

Common Pitfalls:

Confusing cellulose nitrate (flammable) with less flammable cellulose acetate; overlooking temperature sensitivity which limits high-heat applications.

Final Answer:

All the above