Question 1. The correct answer is option B. "appositive position".
Question 2. The correct answer is option C. "predicate position".
Explanation:
Question 1. In grammar, an adjective that is in apposite position adds descriptive words to a noun that is just right next to it. Usually adjectives that are in apposite position have a comma right next to the noun, such as the one presented in the example, were "stooped and shaking" defines the noun "The old man".
Question 2. The predicate position of an adjective is the simplest form of grammar and is clearly stated by the use of the verb "to be". In the example the noun "Arithmetic" is defined by the adjective "frustrating" using the verb "is".
The answer to the first is B. Appositive position, because it is separated with commas. The answer to the second is C. predicate position, because Frustrating is a participle that combines with is to create a predicate.
She caught me off-guard. I did not know what to say. She is in love I can tell. You shouldn't laugh at him, he has a speaking problem. Come on guys! We should not be here in this nice club having a good time, not talking shop(?) (I believe you replaced a word with shop).