For Part A, the group that most likely opposed the Progressive reform efforts of Governor Parker would be:
B. owners of large utility companies and drilling interests.
Progressive reforms often included regulations that could impact the profits of large utility companies and drilling interests, leading to their opposition.
For Part B, based on Source 2, the statement that best explains how Louisiana parishes reacted to the temperance movement would be:
A. A statewide ban on alcohol consumption was protested by many parishes.
This indicates a resistance to the temperance movement where many parishes did not support the statewide ban on alcohol.