; (C) limit in-person meetings and conferences; (D) group students in such a manner as to minimize the burden placed on teachers; and (E) provide guidance for teachers who have an increased health risk for instructing students remotely; (3) a plan to— (A) close in-person learning in the case of a resurgence (as defined by the Secretary of Health and Human Services, acting through the Director of the Centers for Disease Control and Prevention) of COVID–19 cases in the State; (B) with respect to a school in which a student or staff member who attends such school in-person tests positive for COVID–19, close such school until it is safe for students and staff to return; and (C) notify each student and staff member who may have come in to contact with a student or staff member described in subparagraph (B) of the potential exposure to COVID–19; and (4) such other information as the Secretary may require. (c) Use of funds (1) In general A State educational agency that receives a grant under this section may only use such grant— (A) to carry out such activities as are necessary to implement the guidance described in subsection (b)(1), as determined by the Secretary; and (B) to— (i) conduct teacher training on public safety protocols; (ii) establish or expand digital education programs; (iii) carry out teacher professional development for digital learning; (iv) establish or expand summer learning, weekend instruction, or expanded school years to supplement instruction; (v) hire substitute teachers, including substitute teachers for teachers who are medically vulnerable; (vi) provide paid sick and family leave for all staff, including substitute teachers and contract workers; (vii) establish or expand mental health support services, including by hiring staff and other personnel to meet the social, emotional, and mental health needs of students