Final answer:
The subject of this question is English. The correct option is Option 4: She remains silent.
Step-by-step explanation:
The subject of this question is English. The student is asking about the meaning of a statement: 'She doesn't make speeches anymore; she has become speechless.' Given the information provided, the correct option is Option 4: She remains silent. The statement indicates that the person no longer speaks and is unable to produce words.