There are some rules, but the pronunciation is also important.
If the word ends in a vowel, an “n”, or an “s”, stress the last-but-one syllable:
If the word ends in a consonant other than “n” or “s”, stress the last syllable: ...
If the word has an acute accent, ignore the above rules and stress the accented syllable:
Is B or C I’m fluent in Spanish and I don’t really know what The expression really mean but I’ll go with C
Se encuentra en una entrevista de trabajo
The answer is Direct, a direct trade agreement is a agreement created between to countries