This is in the company requirement list, I want to know the difference between them

In Simple terms,

1. Spring MVC

   Spring - It is a Inversion of control (IOC) and Dependency Injection (DI) framework. Spring helps you develop enterprise applications. Most information you can read here https://spring.io/projects/spring-framework

   MVC - It is a design pattern (Model - View - Controller ) MVC , by definition, they are proven patterns and methods to design your application well. We have several design patterns such as Singleton, Factory pattern etc Read more about it here https://refactoring.guru/design-patterns

2. Spring-boot - It is a library built on top of Spring framework (like we have JARs) which helps develop production ready quick service oriented applications. You can still use typical Spring features. Read more about it here https://spring.io/projects/spring-boot

3. Spring-core - Just a named terminology representing core features of Spring framework such as IOC container, Dependency Injection, Bean scopes, Autowiring etc

Hope this helps!