A may be desirable as an entry strategy if one company does not have the necessary financial, physical, or managerial resources to enter a foreign market alone.

Joint Venture

Explanation:

When one company does not have the necessary financial, physical, or managerial resources to enter a foreign market alone, the joint venture is a most suitable arrangement. Joint Venture is a term which is used when two companies add human and financial resources to work for their common benefits. These companies be from different industries or different locations. Usually a local and foreign company makesbthis type of arrangement. Foreign company has access in the market with low cost, less control and low margin,as it has to share with local company which is working in the market on their behalf.

the correct answer will be d