Ich bin ein par Kollegen gelernt. The sentence is gramatically correct.
B
Correct answer
Explanation
The German sentence 'Ich bin ein par Kollegen gelernt' contains multiple grammatical errors. First, 'par' is not German - the correct word is 'von' (from). Second, the preposition should govern the dative case 'von Kollegen' not 'von Kollegen' (though this happens to be correct). Third, the word order and construction are incorrect - it should be 'Ich habe von Kollegen gelernt' or 'Ich bin von Kollegen lernend' depending on intended meaning. The sentence as written is grammatically incorrect.