operating cash flow Vs. FCF to firm

I would assume that it means the operating cash flows, but I would need to see the whole question (and know, for example, what it is they are growing at the same rate as). As I have written in my reply to another of your questions, it is possible that (for example) the operating cash flows might grow at the same rate as the revenue, but because interest payments are likely to be fixed, the free cash flows are not going to grow at the same rate.