请阅读下面这个段落，并选择你认为正确的linker用法： I...

请阅读下面这个段落，并选择你认为正确的linker用法： It has long been documented that individuals in an organization may voluntarily carry out tasks that are not part of their regular job duties. 1 ，individuals may go above and beyond the call of duty to help coworkers, prevent problems or volunteer to stay late when not expected to do so. This behaviour is intended to help others in the organization or the organization itself and is often referred to as organizational citizenship behaviour (OCB). 2 it is recognized that OCB is important for an organization to effectively function, there is debate among researchers as to how OCB can be encouraged and rewarded. 5. This debate is further complicated when considering the role of OCB in multinational corporations pursuing global diversity. 6. Most OCB research has focused on Western cultures; 3 , it is not clear whether these research findings can be extended to other cultures, 4 suggesting a need to investigate OCB as it exists in other cultures, particularly those described as “collectivist.”

A、1-For example; 2-While; 3-therefore; 4- however

B、1-For example; 2-While; 3-however; 4- therefore

C、1-Therefore; 2-While; 3-for example; 4- however

D、1-For example; 2-However; 3-therefore; 4- while