Obtaining bail pending trial refers to a compulsory measure in which the people's court, the people's procuratorate and the public security organ order the defendant to provide a guarantor, who guarantees that the defendant will not evade or hinder the investigation and is available on call.
According to the above definition, which of the following cases is obtaining bail pending trial?
Ma was sentenced to five years in prison for fraud. After two years in prison, he suffered from a severe rheumatic heart disease and was transferred to a hospital under the guarantee of his family. The public security organ is responsible for supervision during the treatment period. Six months later, he recovered and returned to prison to serve the rest of his sentence