"Submissive" means ready to conform to the authority of others; meek, obedient, or docile.
Checking options:
- (a) Obstinate → opposite (stubborn).
- (b) Unyielding → opposite of submissive.
- (c) Stubborn → opposite meaning.
- (d) Docile → correct synonym, meaning obedient and easily managed. \[ \boxed{\text{Docile}} \]
Find the missing code:
L1#1O2~2, J2#2Q3~3, _______, F4#4U5~5, D5#5W6~6