Regarding haemorrhagic infarction of the brain, which of the following is not true

• A. it usually results from an embolic event
• B. it usually contains multiple petechial haemorrhages which may be confluent
• C. the distinction between this and non haemorrhagic infarcts is clinically insignificant
• D. the haemorrhages are presumed to be secondary to reperfusion injury
• E. the size of it will depend in part upon the collateral blood supply to that area