workers pour tons of concrete to hold the bridge to its foundations.\na masonry\nb none of these\nc steel\nd…

workers pour tons of concrete to hold the bridge to its foundations.\na masonry\nb none of these\nc steel\nd iron
Answer
Brief Explanations:
Masonry workers deal with building materials like concrete. They are responsible for tasks such as pouring concrete for structures like bridge - foundations. Steel and iron workers mainly work with metal materials, not concrete - pouring for bridge foundations.
Answer:
A. Masonry