Besides the Information in Annual Reports, How Many of These $\bullet$

Besides the information in annual reports, how many of these are sources of financial information about companies that are useful for analysing their performance and financial position?
$\bullet$ The Internet
$\bullet$ The Stock Exchange
$\bullet$ Financial newspapers and journals
$\bullet$ Stock brokers
$\bullet$ Information on competitors

A) 2
B) 3
C) 4
D) 5