Choose the error in the reference list entry from the choices provided. according to harvard referencing

Roberts, M. 2012. English for Economics in Higher Education Studies. London.

A.
Date

B.
Italics

C.
Name of publisher

D.
Name of author(s)

C. Name of publisher

The error in the reference list entry is:

C. Name of publisher

In Harvard referencing, the publisher is not included in the reference list entry for books.