Which of the Following Statements Are True About Primary Raynaud's

Which of the following statements are true about primary Raynaud's phenomena versus secondary Raynaud's phenomena?

A) Secondary Raynaud's phenomena is an inherited condition and runs in families while primary does not
B) Secondary Raynaud's phenomena is associated with many diseases while primary Raynaud's phenomena is an inherited condition
C) Primary Raynaud's phenomena is associated with hypothyroidism and atherosclerosis but secondary Raynaud's phenomena has no such association
D) Primary Raynaud's phenomena is precipitated by cold while secondary is not