Fill up with correct word. The regulations are fairly simple but (23) do not have proper information, they may (24) that private medical care is extremely expensive. It is not unusual to discover that they do not have (25) money with them to (26) the total cost and (27) such circumstances an already difficult situation becomes even more complicated.

Correct option is C

• Cover the total cost is a common phrase in English, meaning to pay for or take care of the cost.

• This makes perfect sense because it means they cannot afford to pay for the total cost.

• Fits both grammatically and logically.