The psychological contract refers to the implicit responsibilities and expectations of the two parties between the individual and the organization that is not expressly stipulated. According to the above definition, which of the following is measures to establish a psychological contract? ['In order to increase employee motivation, the best monthly performers can enjoy double pay.', 'To resolve employee worries, sign lifetime contracts with outstanding employees.', 'In order to attract outstanding talents, promise to provide employees with interest-free loans for housing purchases.', "Combining the company's development blueprint to provide employees with career design."]