Take context from the input text and decide on the accurate relationship between 'Angel Broking' and 'financial services' from the options provided.
Options: industry, platform, member of, chief executive officer

"The trend-deciding level for the day is 25,929 and 7,889 levels," financial services firm Angel Broking said in a pre-open comment, referring to the Sensex and the Nifty, respectively.
industry