I would like to understand the different virtual machine (VM) sizes and series offered by Microsoft Azure, such as B-series, D-series, E-series, and other instance families. How do these VM series differ in terms of CPU performance, memory capacity, storage capabilities, and typical use cases? For example, when should organizations choose burstable VMs like the B-series versus general-purpose or memory-optimized options like the D-series or E-series? Additionally, what factors—such as cost efficiency, scalability requirements, workload type, and performance needs—should be considered when selecting the most suitable Azure VM series for cloud-based applications and infrastructure?