What is the best definition of realpolitik?

politics centered on the ideals and hope of everyday people
politics focused on real change through peaceful means
politics based on power and practical facts rather than ideals
politics aimed at provoking real discussion among leaders

Sole i will mark brainlist to who answer

Interest groups representing businesses and investors are often among the most successful lobbying groups for all of the following reasons, except a. such groups have the financial resources to mount sustained campaigns on their own behalf b. these groups' members contribute heavily to many legislators' campaigns and in so doing gain greater access to legislators c. these groups have often been in existence for decades, allowing them to both master the legislative system and develop close ties with legislators d. the members of these groups make up the majority of voters in many districts

The roman empire created the worlds first