Final answer:
Without the specific text, we cannot ascertain DeConcini's main purpose, but it is likely related to explaining the importance of equal rights or critiquing their opposition based on historical context given.
Step-by-step explanation:
The main purpose of DeConcini in the text is not immediately clear without additional context. However, based on the supportive information provided and the discussion about the Equal Rights Amendment (ERA), civil rights movements, and the efforts by the National Organization for Women (NOW), we can infer which of the provided options is likely not DeConcini's main purpose in the text. Since the information presented deals primarily with past historical events and efforts of various groups to secure equal rights, we can likely eliminate options directly related to current public opinion or making the Equal Rights Amendment an official government stance, as these are not discussed in the supporting facts. DeConcini's purpose is more likely focused on explaining the importance of equal rights or critiquing opposition to them, yet we need the specific text to determine which one it is.