Which of these combinations of clinical features is most suggestive of mixed mitral valve disease with a predominance of mitral regurgitation?

• A. Displaced apex beat; soft first heart sound; pan-systolic murmur; short mid-diastolic murmur
• B. Irregularly, irregular pulse; displaced apex beat; ejection systolic murmur; short mid-diastolic murmur
• C. Displaced apex beat; normal first heart sound; pan-systolic murmur; long mid-diastolic murmur
• D. Tapping apex beat; loud first heart sound; pan-systolic murmur; long mid-diastolic murmur