A factor that most directly affects the demand for automobiles is the individual tastes and preferences of buyers. the cost of raw materials and natural resources. the availability of workers in automobile factories. a company's ability to respond to buyers' interest.

Step 1: Define the Problem

Identify which factor most directly affects the demand for automobiles from the given options.

Step 2: Break Down the Problem

Evaluate each option to determine its direct impact on the demand for automobiles:

1. Individual tastes and preferences of buyers.
2. Cost of raw materials and natural resources.
3. Availability of workers in automobile factories.
4. A company's ability to respond to buyers' interest.

Step 3: Apply Relevant Concepts

• Demand Theory: Demand is primarily driven by consumer preferences and willingness to purchase at a given price.
• Supply Factors: Cost of raw materials and availability of workers affect supply, not directly demand.
• Company Responsiveness: This affects how well a company can meet demand but does not directly influence demand itself.

Step 4: Analysis, Verify and Summarize

• Individual Tastes and Preferences: Directly influence consumer demand as they determine what consumers want to buy.
• Cost of Raw Materials and Natural Resources: Affects production costs, impacting supply rather than demand.
• Availability of Workers: Influences production capacity, affecting supply.
• Company's Ability to Respond: Impacts how well demand is met, not the demand itself.

Final Answer

The factor that most directly affects the demand for automobiles is the individual tastes and preferences of buyers.