<prompt> Under the national TB programme, for a PHC to be called a PHCR, requisite isMicroscopyMicroscopy plus radiologyRadiologyNone of the above  <response>: District tuberculosis centre DTC is the nucleus of DTPThe function of DTC is to plan, organize and implement the DTP in the entire district, in association with general Health services.When DTP activities Sputum microscopy, chest X-ray, Anti-TB treatment are introduced in an organized manner in a peripheral health institution PHI, it is considered to be implemented PHI.It is important that only such PHIs are selected for implementation of the programme, which are under the charge of qualified Medical officers. 