سوال ۹ کنکور ارشد علوم کامپیوتر ۱۴۰۲

PART B: Cloze Test — Read the passage and choose the option that best fits the blank.

The new species was named Maiacetus inuus, which means "mother whale," and was placed in the family Protocetidae. Assignment to a new species was justified due to critical differences from other protocetid whales, such as solidly co-ossified left and right dentaries (lower jaws), (9) ---------- in the ankle, and significant disparity in hind limb elements.

Which choice best fills blank (9)?