This question assesses vocabulary knowledge and the ability to understand context. **Core Concept:** The word 'deprivation' implies a state of lacking something essential or beneficial, particularly in the context of social disadvantages. **Correct Answer (C):** The word 'lack' is the best synonym for deprivation in this context. It emphasizes the absence of needed resources or opportunities. **Incorrect Option Analysis:** * **A:** 'Abundance' means having plenty, which is the opposite of deprivation. * **B:** 'Advantage' means having an edge or benefit, also contrary to deprivation. * **D:** 'Excess' means too much of something, not a lack. **Key Points:** Vocabulary knowledge is essential, and understanding a word's meaning within a specific context is critical. **Error Prone Areas:** Students might choose words that have some similar sound or general meanings but don't fit the specific context. Always consider the specific meaning of the word within the given sentence or situation.