Which language family (not individual language) has the largest number of native speakers? afro-asiatic austronesian indo-european sino-tibetan?

Susan wants to communicate with julia. arrange the steps of the communication process in the correct order. 1. susan realizes that she would be able to best convey her business plan through an email. 2. julia receives the email. 3. susan drafts an email including all the necessary details of the business plan and sends it across to julia. 4. julia sends an email back to susan summarizing what she understood and stating that she liked susan’s business plan. 5. susan thinks of a business plan that she wants to share with julia. 6. julia reads and understands the business plan that susan wants to share.