From one daughther 's exploits to another 's . In her latest dispatch from Africa , Christelle Randall brings the first part of her wildlife escapade to an end with a moving tale of parting : participants in the project , naturally , but also a cheetah and one or more of her cubs . And for those poor American colleagues at my newspaper in Abu Dhabi for whom my formal ban of trivial use of the word " awesome " has been so painful to bear , this ought to be a most heartwarming posting .... The second part of my South African wildlife expedition is over .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for their trip to South Africa ?
Options:
- None of the above choices .
 - They wanted to vacation in South Africa .
 - They were working in South Africa .
 - They were involved in a project to explore wildlife in South Africa .


They were involved in a project to explore wildlife in South Africa .