Spring vs Spring Boot

Suppose you are working in a new company and are given a new mission-critical project. The deadlines for this new project are stricter than the normal projects that you handle. Your company and team use Java as a preferred language. You have to choose between Spring and Spring Boot for your new project. Which one would you go with?

1) Both of them are the same. You can choose either of them.

2) Spring is old and proven. So, you can choose Spring.

3) Spring Boot builds on top of Spring to provide additional benefits. So, you can choose Spring Boot.

4) Spring builds on top of Spring Boot to provide additional benefits. So, you can choose Spring. Please Provide the Right solution