Indicate true (T) and false (F) statements below regarding superresolution fluorescence microscopy. Your answer would be a four-letter string composed of letters T and F only, e.g. FFFF.
( ) Resolutions of 5 nm or better can be readily achieved by superresolution fluorescence techniques.
( ) SIM overcomes the limit imposed by the diffraction of light by a computational analysis on images obtained from interference patterns.
( ) PALM and STORM techniques reduce the width (or "spread") of the point spread function.
( ) Success of STED depends on fluorescence probes that are reversibly switched off and on.