The Leadership Team of Agency a Is Planning to Evaluate

The leadership team of Agency A is planning to evaluate the effectiveness of three of its programs. They want to ensure that the programs' clients do not experience any harm as a result of the evaluations; therefore a thorough description of the research is explained to each individual. Clients will not be included in the research if they do not explicitly agree to the terms of participation. What ethical safeguard is considered here?

A) Informed consent
B) Social justice
C) Empowerment
D) Collaboration