Final answer:
The correct phrase to complete the sentence is 'O unas claras'. The phrase 'unas claras' means 'some light-colored ones'.
Step-by-step explanation:
The correct phrase to complete the sentence is O unas claras. The phrase 'unas claras' means 'some light-colored ones'. The word 'unas' agrees with the feminine noun 'botas' and the word 'claras' agrees with the feminine noun 'unas'. Therefore, the correct translation is 'I want some light-colored ones'.
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