Final answer:
PXE is the correct boot method that receives bootstrap files from a network server.
Step-by-step explanation:
The correct answer is PXE. PXE stands for Preboot Execution Environment, which is a network booting method that allows a computer to boot and load an operating system from a network server. It is commonly used in large-scale computer deployments, such as in organizations or data centers, where it saves time and effort by centrally managing and distributing operating system images to multiple computers.