Q. What does the group_by() function do in dplyr? (A) Groups the data frame by a specified column (B) Creates a new variable based on existing ones (C) Orders the rows based on a specific column (D) Filters unique rows based on specified columns 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) Groups the data frame by a specified column