Cade is a cell phone manufacturing engineer at A-Tech. When he joined A-Tech, he had received a stock option. The stock option is now worth about 500K dollars in total. However, the stock option can only be cashed out after three years due to the contract that he had made with the company at the time of the grant of the stock option. If he leaves the company before the stock option can be cashed out, he loses all the privileges related to the stock option. As a result, he did not accept the job offer from another company with a 30K dollars higher in salary level. In this example, Cade is exhibiting _______________________.
1) continuous commitment
2) affective commitment
3) social commitment
4) normative commitment