English Language · One Word Substitution

निम्नलिखित वाक्य में रेखांकित वाक्यांश के लिए एक शब्द प्रतिस्थापन (one-word substitute) के रूप में उपयोग किए जा सकने वाले विकल्प का चयन करें। In a groundbreaking experiment, Markus Heinrichs and his colleagues at the University of Freiburg, Germany, asked volunteers to participate in an activity where they could invest money with an identity whose name is not known or publi c.