I think that it is D hope it helps
D. Pullman car was a train car. Standard time was used by railroads so trains would not crash into each other. Standard gauge was the size of
Tracks so any railroad could use it.
Facilitation is helping or aiding teams by maintaining a process orientation and focusing the group. Facilitation is the process of providing knowledge, skills, and techniques during a personal or group program in order to create a positive development environment. The facilitator needs to achieve objectives in a program designed to make the participant feel part of an environment of growth, confidence and a lot of communication.
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The need for affiliation corresponds to the belongingness level of needs in abrahm maslow's hierarchy of needs. Belongingness is the third level of needs in abrahm maslow's hierarchy of needs. The third level represents the social need for affiliation, also known as love and belonging.