When she inherited some jewellery from a distant relative, she had no idea of its worth and decided ______.

When the woman inherited jewellery from a distant relative, she didn't know its value and needed to take action to determine its worth. The correct phrase to complete the sentence is "to have it appraised" (Option C) because this specifically means getting a professional valuation of the jewellery's monetary worth. This is exactly what someone would do when they inherit valuable items and need to understand their financial value.

The other options don't fit the context correctly. "To get an approval" (Option A) would mean seeking permission rather than determining value. "To get it appreciated" (Option B)suggests making the jewellery more valued emotionally, not assessing its price. "To have it apprised" (Option D) is incorrect because "apprise" means to inform someone about something, which has nothing to do with valuation. Only "appraised" correctly describes the process of professionally evaluating the jewellery's worth.

Option C is the correct choice here.