Question

which filament in a sarcomere is bonded and stabilized by the m line?
a thin filament
b thick filament

Explanation:

In a sarcomere, the M - line is associated with the thick filaments (myosin filaments). The M - line helps in stabilizing and holding the thick filaments in place. Thin filaments (actin filaments) are associated with the Z - line.

Answer:

B. Thick Filament