A lawyer with a specialization in environmental law was contacted by a prospective client who was concerned about potential environmental violations by a local manufacturing plant. The lawyer had previously represented this plant on unrelated matters. Before taking on the new client, the lawyer checked her firm's conflict of interest system and found no current conflicts. Is it permissible for the lawyer to represent the new client against the manufacturing plant?

O Yes, because the matters with the manufacturing plant were unrelated to the environmental issues.
O Yes, because the lawyer checked the firm's conflict of interest system and found no current conflicts.
O No, because representing the new client could require the lawyer to use confidential information obtained from the previous client.
O No, because the lawyer has previously represented the manufacturing plant, creating an automatic conflict of interest.