A Company Has Contacted You to Provide a Recommendation Letter

A company has contacted you to provide a recommendation letter for a former employee of yours that they are considering hiring.However,your company's policy does not permit you to confirm anything more than the employment dates and designation of the former employee.How can you best communicate your inability to comply with the request?

A) I'm sorry, but company policy prohibits me from providing recommendation letters. I can only confirm that Greg Wilson worked with us for two years, from April 2008 to May 2010. Please contact me if you need any more information.
B) As much as I would like to provide a letter of recommendation, our legal department does not allow it. All I can say is that Greg Wilson worked for this company for two years, from April 2008 to May 2010. Thanks.
C) We share your concerns in conducting thorough reference checks of all prospective employees. However, I am only allowed to reveal the employment dates and designation of Greg Wilson. He was with our company from April 2008 to May 2010 and was a dedicated Service Representative and a team player. Best of luck with your recruitment.
D) Our legal department has authorized me to confirm that Greg Wilson worked as Service Representative at our company for two years, from April 2008 to May 2010. We wish you luck with your recruitment.
E) Thank you for contacting us for a recommendation letter for Greg Wilson. Your company is well known for its great work culture and open management style. We can confirm that Greg Wilson worked with us as Service Representative for two years, between April 2008 and May 2010. Company policy allows us to disclose no more than this.