According to the text, Rosana Fisher is

Rosana Fisher works at an outdoor activities centre on the west coast of Scotland. She teaches mountain climbing, scuba diving and hang-gliding. She's talking to some young people who've just arrived at the centre:

I - 'You can't do any of the activities unless you're with an instructor.'

II - 'We won't let you start an activity if you don't have the correct equipment.'

III - 'You can't go scuba diving unless you've done the training course.'

IV - 'Remember you can't leave the centre unless you say where you're going.'

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