Answer: II, III and IV
Explanation: Activities classified as research and development usually differ from one company to another. There are how eve standardized models of what should be considered as research and development activities in a corporation. Generally, research and development activities refers to those activities by companies that are widely linked to innovation both in public and private sectors.
In this context, II. Searching for applications of new research findings. III. Laboratory research aimed at discovery of new knowledge. IV. Conceptual formulation and design of possible product or process alternatives can all be classified as research and development activities