B选项为何错

问题如下：

Dilshan Kumar, CFA, is a world-renowned mining analyst based in London. Recently, he received an invitation from Cerberus Mining, a company listed on the London Stock Exchange with headquarters in Johannesburg, South Africa. Cerberus asked Kumar to join a group of prominent analysts from around the world on a tour of its mines in South Africa, some of which are in remote locations and not easily accessible. The invitation also includes an arranged wildlife safari to Krueger National Park for the analysts. Kumar accepts the invitation, planning to visit other mining companies he covers in Namibia and Botswana after the safari. To prevent violating any CFA Institute Standards of Professional Conduct, it is most appropriate for Kumar to only accept which type of paid travel arrangements from Cerberus?

选项：

A.Flights on a private airplane to the remote mining sites in South Africa B.Economy class round trip ticket from London to Johannesburg C.Ground transportation to Krueger National Park

解释：

Standard I(B): Independence and Objectivity requires members and candidates to use reasonable care and judgment to maintain their independence and objectivity in their professional activities. Best practice dictates that Kumar only accept transportation to the remote mining sites because it is unlikely he would be able to source commercial flights to the locations and ground transportation may not be viable. Because Kumar would normally visit mining sites around the world as part of his job and because he is combining this trip with trips to other mine sites in different countries, it would be inappropriate for Cerberus to pay for the analyst's travel expenses from London. Although Kumar could go on safari with the group of analysts, he should pay his own way so as to restrict any influence such a gift could possibly have when making his investment recommendations on Cerberus.