Quattrone is accused of obstructing justice by helping to encourage co-workers in an e-mail to destroy files on lucrative investment banking deals .

Quattrone is accused of attempting to obstruct justice by endorsing that e-mail , which encouraged co-workers to destroy files on profitable investment banking deals .

Select from the options at the end. Do the above sentences mean the same thing?
Available choices:
a). no;
b). yes;
b).