Respuesta :
Answer:
The correct answer is option b. the chromosomes line up.
Explanation:
Metaphase is the phase which takes place between prophase and anaphase. It is mitotic phase in which microtubules attached. The chromosomes line up during this phase.
Metaphase is characterized by the attachment of spindle to the chromosomes. Attachment is complete by the microtubules of spindle.
Thus, the correct answer is option b.the chromosome line up.