Answer:
c. strategy of product and global diversification
Explanation:
According to my research on the different strategies that national companies use, I can say that based on the information provided within the question Leon Corp. has adopted a strategy of product and global diversification. This can be said because they expanded their services from building skyscrapers to home construction/renovation as well as expanding their business from United States to Europe.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.