Answer:
The firm that will have a higher beta is:
Firm B.
Explanation:
The question here is which firm is more volatile. Since they have a similar amount of financial leverage, Firm B which uses more human workers on its assembly line and pays overtime will appear to be more volatile than Firm A with a highly automated robotics process. Firm B faces risks of labor strikes and other vagaries associated with the use of more labor than the market.