Çözüldü Modal Perfect (If Clauses Type 3) - Time Consistency

Before August 26, 1922, if the Greeks ________ the weakness of the 2nd Turkish army in terms of numbers and strength against Greek forces on the front, they ________ an attack in the Konya-Ankara direction and ________ into Anatolia.

A) would have noticed / were going to easily launch / would advance
B) would see / might be easily launching / should be advancing
C) understood / had launched easily / were advancing
D) had recognized / could have easily launched / advanced
E) have been able to perceive / should easily be advancing / will have advanced

Correct Choice: D (had recognized / could have easily launched / advanced)

Reference: https://learnenglish.britishcouncil.org/grammar/b1-b2-grammar/conditionals-third-mixed