A pronunciation guide is a key to help you understand the sound of pronunciation symbols. Option A is correct.
A pronunciation guide refers to a guide which show how words should be pronounced, this tends to be presented in the form of a list of symbols. The symbols used always integrate articulation, stress and intonation. Dictionaries typically include pronunciation guide which shows phonemes to teach you how to correctly pronounce words.
the notes explain how electoral debates influenced the polls, this wouldn't support the students counter claim against that evidence. Using that source would be like proving right what you're trying to prove wrong.
Answer: I'm assuming this is a grammar correction...
In this case, your answer would be a) planner's job. Assuming the planner is a person, we would insert the 's because we are describing his/her job. We remove the comma because it is placed incorrectly in the sentence.