9 public interface ADTList {9 /** Remove all contents from the list, so it is once again empty. Client is responsible for reclaiming storage used by the list elements. */ public void clear(); /** Insert an element at the current location. The client! must ensure that the listas capacity is not exceeded. 9 @param item The element to be inserted. *19 public void insert(E item); /** Append an element at the end of the list. The clients must ensure that the lists capacity is not exceeded. 3 @param item The element to be appended. */9 public void append(E item); /** Remove and return the current element. @return the element that was removed. *79 public E remove(); j** Set the current position to the start of the list */9 public void moveToStart(); ** Set the current position to the end of the list */9 public void moveToEnd(); ** Move the current position one step left. No changes if already at beginning. */ public void prev(); /** Move the current position one step right. No change if already at end. 79 public void next(): /** @return The number of elements in the list. *19 39 public int length(); 5 /** @return. The position of the current element. *15 public int currpos(); /** Set current position." @param pos The position to make current. *79 public void moveToPos(int pos); 47 48 /** @return The current element. */9 public E getValue(); 50 5 51 /** @return The current element. */9 52 public-E getValue(int pos); 53 54 **@return the element position in the list*/5 55 public int find(ek); 56 57 5 58 } 38 40 41 42 43 442 45 46 5 49 En An ADT List is given as the interface code above. Given a list in the current form , what is the value to be returned when the method getValue() is invoked. O a 15 O b. 12 Oc 10 Od 32