Let’s break the idiom down. "Thrown in at the deep end'' comes from swimming — if someone is dropped into deep water without help, they must struggle to swim.
In work or life, this idiom means giving someone a difficult task or challenge without much help or preparation.
Now let’s evaluate the options:
- Option A: Easy task – incorrect, the idiom talks about something difficult.
- Option B: Given everything needed – not true.
- Option C: Difficult task with little help – exactly what the idiom means.
- Option D: Taking a break – completely wrong.
Therefore, Option C is the right choice.