How can I solve this questions?

1.Which is NOT a trigger for a wave of M&As?

A) Credit availability B) Industrial and technological shocks C) Potential for synergy realization D) Regulatory changes

2. Which of the following is NOT a dimension of organizational culture?

A) Communication B) Lateral interdependence C) Approach to performances D) Approach to innovation and activity

3. Which inventory costing method is only permitted under US GAAP?

A) FIFO B) LIFO C) Weighted average cost D) Specific identification

4. Which of the following about knowledge is true?

A) Explicit knowledge is more "in the head" of the knowledge carrier B) Individual knowledge highlights the importance of organizational culture C) Tacit knowledge refers to contextual practices D) Organizational knowledge cannot be carried forth by individuals