Hi,
Articles, articles . . .
Talking about an investment fund:
(A)Performance has been strong.The performance has been strong.(B)
The fund has shown remarkable performance.The fund has shown a remarkable performance.My English 'consultant' says that in both cases, the article is optional and both 'performance/the performance' and 'remarkable performance' and 'a remarkable performance' are correct. It's just a matter of style.
Yes?

Thank you.
Andy