Amethod for selecting multiple lines of text is to select one: a. double-click the word b. click and drag in the white space to the left of the lines c. press and hold the ctrl key, then drag the mouse pointer to select multiple blocks of nonadjacent text d. click the beginning of the block, then press and hold down the alt key until the entire block is selected

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.

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Which feature of a blog to restore and retrieve older post