Question 015
### Which matrix job definition is syntactically correct?
> https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs#using-a-matrix-strategy
1. [x]
```yaml
jobs:
example_matrix:
strategy:
matrix:
version: [10, 12, 14]
os: [ubuntu-latest, windows-latest]
```
1. [ ]
```yaml
jobs:
example_matrix:
matrix:
strategy:
version: [10, 12, 14]
os: [ubuntu-latest, windows-latest]
```
1. [ ]
```yaml
jobs:
example_matrix:
matrix:
version: [10, 12, 14]
os: [ubuntu-latest, windows-latest]
```
1. [ ]
```yaml
jobs:
matrix:
version: [10, 12, 14]
os: [ubuntu-latest, windows-latest]
```