Which approach involves the use of a combined ecological approach to control pests? 

A)  the IPM approach 
B)  the EPA approach 
C)  the WBO approach 
D)  the IMP approach

IPM Approach

Integrated Pest Management (IPM) is a sustainable approach to managing pests by combining biological, cultural, physical, and chemical tools in a way that minimizes economic, health, and environmental risks.

Ecological Approach

A perspective or method that emphasizes understanding complex environmental systems and their interactions, often aimed at sustainability.