fyi there was two questions and that answer was incorrect the correct answer for the 2 question was A
The simple subject of this sentence is B. discovery.
Which is just an interrogative pronoun, it cannot be a subject. Important is an adjective, which cannot be a subject. You is an objective pronoun.
Answer:
it's about animal and nature.this tell us how productivity of beef cattle rise and number of sheep falls
The intensive pronoun are pronouns that add extra emphasis on the subject (or object) and which can be removed. In this sentence "himself" is the intensive pronoun.
