Answer :
Answer: d) different perceptions
Explanation:
The situation mentioned in question states that Andrea is well known about the working , success and accomplishments of the marketing field as she has been working in it for past 27 years.
She is resisting these changes that are proposed because she has been through similar scenario and does not want to consider the changes as the working of marketing field is going properly with the current methods and previously success has been achieved through it.
Due to difference of opinion towards changes raised by other make her reluctant.
Other options are incorrect because loss, risk and uncertainty are not the factors Andrea is worried about rather she wants to decline the changes . Self interest of Andrea is not getting damaged in the mentioned case.Thus, the correct option is option(d).