By grouping the risks by categories the project team can develop effective risk responses. Related risk events often have common causal factors that can be addressed with a single risk response.

Section: Volume A
Explanation/Reference:

Section: Volume B
Explanation:
As the risk is transferred to the third party (electrician), hence this type of risk response is transference.
Incorrect Answers:
A: Risk avoidance means to evade risk altogether, eliminate the cause of the risk event, or change the project plan to protect the project objectives from the risk event. Risk avoidance is applied when the level of risk, even after the applying controls, would be greater than the risk tolerance level of the enterprise.
C: Risk mitigation attempts to reduce the probability of a risk event and its impacts to an acceptable level. Risk mitigation can utilize various forms of control carefully integrated together.
D: Risk acceptance means that no action is taken relative to a particular risk; loss is accepted if it occurs.