It is the pinna. This is the ear’s part that acts as a funnel to concentrate sounds and guide them into the ear. It is this part’s responsibility to collect sound by acting as a funnel of the ear. It is through the pinna that amplifies the sound and directs the sound to the ear canal. The ear of a human is divided into three parts. The pinna is located and part of the outer ear. Hearing does not take place here but rather this is the part where sound is collected and directed into the the internal passage called auditory canal. From this canal, sound travels or passes to the inner part and that is where the sound is processed.
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I think A or B could be a possibility to your answer
A natural satellite or moon is, in the most common usage, an astronomical body that orbits a planet or minor planet. In the Solar System there are six planetary satellite systems containing 185 known natural satellites.
Hypertension is a complex trait with multiple environmental and genetic contributors. Linkage studies of rare Mendelian disorders of hypertension and hypotension have produced the most notable progress toward understanding the heritable basis of blood pressure. Association studies to identify common variants have been limited in the past by small sample sizes and most findings lack replication.<span>
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