Final answer:
Static analysis improves a program's performance by identifying inefficiencies in the code without running it. Object-oriented programming, recursion techniques, and dynamic typing do not inherently enhance speed or memory efficiency.
Step-by-step explanation:
Among the features listed, static analysis can improve a program's process speed, memory efficiency, and accuracy. Static analysis refers to the examination of code without executing it, helping to identify bugs or inefficiencies before the program runs. This can lead to more optimized code, which in turn can improve performance and reduce memory usage.
Object-oriented programming (OOP) is a programming paradigm that can lead to better organized and maintainable code, but it doesn't inherently improve a program's speed or memory usage. Recursion techniques can sometimes be less efficient in terms of memory and speed compared to iterative solutions, due to the overhead of multiple function calls. Dynamic typing, which refers to determining the type of a variable at runtime, can actually lead to slower program execution and less predictability compared to static typing.