A would be the right choice i think not really enough information.
The answer to this question is the Service Manager. The Service Manager has the same skill with technician but they also represent as a representative to customers and directly reporting to the owner of the business. They also convey to the car and parts dealers. Other specialist like MLR and Electrian Specialist are into fixing cars, doing checkups, maintenance, checking radio and air-conditioned unit and others.
Various teratogens to the pre-natal environment can lead to dangers like causing breathing problems and lungs definicy
