What are the primary focus areas of the three $5$G standards eMBB, URLLC, and mMTC$?$ Question $45$ options: eMBB focuses on high data rate, URLLC on low latency, and mMTC on massive connectivity eMBB focuses on power efficiency, URLLC on high data rate, and mMTC on low latency All three focus on high data rate All three focus on low latency