"A", "B", and "C". Examples of lowercase are "a", "b", and "c".
You can match both cases using what is called a flag. There are other flags but here you'll focus on the flag that ignores case - the i flag. You can use it by appending it to the regex.  An example of using this flag is /ignorecase/i. This regex can match the strings "ignorecase", "igNoreCase", and "IgnoreCase".
fccRegex to match "freeCodeCamp", no matter its case. Your regex should not match any abbreviations or variations with spaces.
freeCodeCamp
    testString: assert(fccRegex.test('freeCodeCamp'));
  - text: Your regex should match FreeCodeCamp
    testString: assert(fccRegex.test('FreeCodeCamp'));
  - text: Your regex should match FreecodeCamp
    testString: assert(fccRegex.test('FreecodeCamp'));
  - text: Your regex should match FreeCodecamp
    testString: assert(fccRegex.test('FreeCodecamp'));
  - text: Your regex should not match Free Code Camp
    testString: assert(!fccRegex.test('Free Code Camp'));
  - text: Your regex should match FreeCOdeCamp
    testString: assert(fccRegex.test('FreeCOdeCamp'));
  - text: Your regex should not match FCC
    testString: assert(!fccRegex.test('FCC'));
  - text: Your regex should match FrEeCoDeCamp
    testString: assert(fccRegex.test('FrEeCoDeCamp'));
  - text: Your regex should match FrEeCodECamp
    testString: assert(fccRegex.test('FrEeCodECamp'));
  - text: Your regex should match FReeCodeCAmp
    testString: assert(fccRegex.test('FReeCodeCAmp'));
```