Kinematics of circumnuclear CO (2–1) molecular gas and association with methanol masers in NGC 4945. Panels (a) and (b): Integrated intensity (moment 0) and velocity dispersion (moment 2) maps of the CO(J = 2–1) line emission within velocity range of 420–560 km s⁻¹ observed with ALMA. Panels (c) and (d): Same as panels (a) and (b) but for the 420–560 km s⁻¹ gas component. These intervals match the distinct kinematic ranges of the maser spots in Complexes A, B, and C. Notably, only pixels with integrated intensity >3σ are shown to avoid noise-dominated regions. The green contours representing the integrated intensity of the CO components are in levels of 5, 10, 20, 40, 60, and 80  Jy beam⁻¹ km s⁻¹. The 36.2 GHz Class I methanol masers are overlaid as colored circles (identical to the convention used in Figure 1). For reference, the contours of the blueshifted and redshifted CO (J = 3–2) outflow lobes (as traced by the line wings in Figure 2) are overlaid on panels (a) and (c).