Which description of emotional interaction is correct?

a$.$

Emotional interaction aims to automate the measurements of feelings when interacting with technologies

b$.$

Emotional interaction is concerned with the recognition, simulation and elicitation of human feelings and reactions when interacting with technologies

c$.$

Emotional interaction is the study of software systems that can recognise and simulate human affects when interacting with technologies

d$.$

Emotional interaction is the design of technology that can trigger desired emotional states when interacting with technologies.