How Can International Human Resource Managers Effectively Minimize Culture Shock

How can international human resource managers effectively minimize culture shock for expatriates?

A) by allowing personnel a short trip to the foreign location before the actual assignment
B) by training personnel to understand the host country's government, culture, and language
C) by inviting foreign employees to the homes of future expatriates for enhancing cultural awareness
D) by asking the expatriate to return to the headquarters