Final answer:
'El que' means 'the one who' in English and is the correct expression to complete the sentence 'habla ahora es la presidenta'.
Step-by-step explanation:
The correct expression to complete the sentence 'habla ahora es la presidenta' is El que.
'El que' means 'the one who' in English, and it is used to introduce a relative clause. In this case, it refers to the person who is speaking currently and is the president. Here is an example sentence: 'El que habla ahora es el profesor.' (The one who is speaking now is the teacher.)
Therefore, the correct answer is c) El que.
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