<prompt> Translate the following text to EnglishUtafiti uliofanywa katika miaka ya 1980 uligundua kwamba kati ya ofa tano za mnada, nne zilikuwa na matokeo ya kuingizwa na kampuni moja au nyingine.  <response>: A study in the 1980s, in fact, found that four out of every five tender offers resulted in the target being absorbed by one firm or another. 