A

Annulospiral (primary) endings coil around the central equatorial region of intrafusal fibres, not at their ends; thus option A is false. Primary endings are indeed annulospiral and are supplied by fast-conducing group Ia afferents, while the flower-spray secondary endings lie more peripherally and are served by group II fibres (Kennedy et al., 1975, PMID 127831; Patak et al., 1992, PMID 1609623).