Given the following sentence, create a valid regular expression to match "apple" or "Apple".
She ate an apple or Apple.
The valid regular expression to match "apple" or "Apple" in the given sentence would be `/[Aa]pple/`
Complete the following task based on the instruction and optional input provided.### Instruction:
Given the following sentence, create a valid regular expression to match "apple" or "Apple".

### Input:
She ate an apple or Apple.

### Output:
The valid regular expression to match "apple" or "Apple" in the given sentence would be `/[Aa]pple/`