Correct option is B
In trauma with suspected cervical spine injury → jaw-thrust maneuver is used. Definitive airway = ET intubation, and OPA/OPA mask may be used temporarily.
Explanation of options: (a) ✘ Bag–mask alone is inadequate for definitive airway. (b) ✔ Correct; OPA/LMA as bridge, ET intubation definitive airway. (c) ✘ Cricothyroidotomy reserved for failed intubation, not first-line. (d) ✘ Lateral recovery unsafe in suspected cervical trauma.