; (B) coordinating, overseeing, and managing the set of activities established under subsection (a); (C) carrying out the activities described in paragraphs (3) through (6); and (D) carrying out such other duties relating to the development and implementation of quantum information science technologies as the Secretary may direct. (3) Defining and codifying Defense quantum information science use cases (A) In general The Principal Quantum Advisor shall— (i) identify operational challenges faced by the Department of Defense that have the potential to be addressed through the use of quantum information science-technology based solutions, including solutions based on the quantum information science technology areas described subparagraph (C); (ii) for each such challenge, determine if the implementation of a quantum information science technology-based solution has the potential to be significantly more effective at addressing such challenge compared to a non-quantum information science technology-based solution, taking into account the technology and manufacturing readiness level of the quantum information science technology-based solution; (iii) for each potential quantum information science technology-based solution identified under clause (ii), evaluate and determine the technology and manufacturing readiness level of the solution taking into account the current readiness level of such solution— (I) within the Department; (II) among other departments and agencies of the Federal Government; (III) among Five Eyes countries; and (IV) within academia and industry. (iv) for each quantum information science technology-based solution determined under clause (iii) to have a technology and manufacturing readiness level of 5 or higher, begin prototyping and evaluation activities of such solution at scale in operationally relevant environments by not later than the end of fiscal year 2025