Answer:
A. statistical process control
Step-by-step explanation:
Statistical process control -
It is the method used to quality control the goods and services, with the help of using statistical methods, is referred to as statistical process control.
The method helps to very efficiently analyse the product and its defects.
The key tolls which are used in this method are the control charts, run chart and design of experiment.
The example of statistical process control is manufacturing lines.
Hence, from the question,
The bike company hired a company which can test the samples with complete precision and accuracy, which take help from the statistical process control.