What Can the Forensics Document Examiner Tell About the Handwriting

What can the forensics document examiner tell about the handwriting that might indicate forgery

A) The slope and angle of the writing is different from the writing in other documents known to have been written by Lincoln.
B) Phrasing and grammar in the document Fred sold are different from what was in common use in 1863.
C) The relative dimensions of the letters in the document that Fred sold do not match those in documents well known historians have attributed to Lincoln.
D) A forensics document examiner would be qualified to testify to all of these.