Which of the following commands executes the NodeJS build

Question:
Considering the given package.json file, which of the following commands executes the build script? (Choose one.)

{
  "name": "Frontend application",
  "version": "1.0.0",
  "description": "Frontend application",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "tsc --build",
    "clean": "tsc --build --clean",
    "start": "node dist/server.js"
  }
}

1. npm run build
2. npm build
3. npm execute build
4. execute build

Answer:
A - is the correct answer