The pectoral girdle is formed by the articulation of the hip bones and the sacrum

False. The pelvic girdle is formed by the articulation of the hip bones and the sacrum.

Explanation:

The pelvic girdle forms the base of the trunk, the sacrum forms the posterior wall of the pelvis and also forms joints in the hip bone called sacroiliac joints .

The pectoral girdle is part of the appendicular skeleton and is composed of the clavicle and the scapula.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.