Final answer:
The subject is Social Studies and the answer to the first question is option b, 'spasiba,' as it is the Russian word for 'thank you' and not a greeting.
Step-by-step explanation:
The subject of this question is Social Studies.
The answer to the first question is option b, 'spasiba,' as it is the Russian word for 'thank you' and not a greeting. The other options are greetings in different languages: a - Filipino, c - Hebrew, and d - Arabic.'
The answer to the second question is not provided as it is incomplete.
Learn more about Expressions or Greetings and Social Difference