<p>I argue A too. “Had fostered” is incorrect in my opinion. The “for decades” indicates that the “fostering” hasn’t ended and is ongoing. Thus “had” indicates the process HAD ended, which is incorrect.</p>
<p>@Jeffrey jung while you’re at it, email CB about the Vehement/Caustic question. I think we are even more divided on that question than this one. (still really believe it’s caustic)</p>
<p>Had is correct in this case, since the second part is written in past tense, the fostering of music must have came before the reaching international audiences. If “had” is replaced with “has,” the sentence really makes no sense.</p>
<p>Although New Zealand had always fostered music for decades, it was not until the 1980’s when New Zealand began to reach foreign audiences. No error.</p>
<p>“Although New Zealand HAS always fostered music for decades, it was not until the 1980’s when New Zealand began to reach foreign audiences.” </p>
<p>“Has always fostered music for decades” would indicate New Zealand is still in the process of fostering music “for decades” which is incorrect. I’m trying to figure out a better way to put what’s wrong with the second part if you use “has” too.</p>