Which of the following are common but dysfunctional investor behaviors? i. overinvesting in companies with familiar namesii. dividing their funds equally among available choices, even if several of the choices serve the same purposeiv. hastily disposing of stocks that have dropped in price in order to take advantage of tax breaksiv. exaggerating the role of luck and randomness in investment success or failurea) i and iv onlyb) ii and iii onlyc) i, ii and iii onlyd) i, ii, iii and iv only