Professional services are characterised by:
i. high contact time.
ii. high levels of customisation.
iii. low levels of discretion.
iv. front office orientation.

A) i, ii and iii
B) ii, iii and iv
C) i, ii and iv
D) None of the given answers

Professional services involve high contact time as clients typically require a lot of interaction with the service provider. High levels of customisation are also a defining characteristic as clients often have individual, unique needs. Additionally, front office orientation is important as the service provider must have direct interaction with the client. However, discretion is actually a high priority in professional services, as clients often trust the service provider with confidential and sensitive information. Therefore, option A is incorrect because it includes low levels of discretion. Option B is incorrect because it includes low discretion and does not include front office orientation. Therefore, option C is the best choice. Option D is clearly incorrect.