Which of the following statements about Software Engineering is most accurate according to its core principles?

1. ASoftware Engineering emphasises systematic, disciplined and quantifiable approaches to software development, operation and maintenance.
2. BSoftware Engineering is concerned only with hardware-software integration during system design.
3. CSoftware Engineering principles apply only to large-scale industrial projects, not small software systems.
4. DSoftware Engineering focuses mainly on programming efficiency rather than maintenance and scalability.