Grounded Coffee, a drive-thru company, has four subsidiaries. The percentage of its business coming from each of the subsidiaries and their respective betas are as follows: Subsidiary Perecentage of...

Grounded Coffee, a drive-thru company, has four subsidiaries. The percentage of its business coming from each of the subsidiaries and their respective betas are as follows:

Subsidiary                                  Perecentage of business              Beta

Electric utility                                            30%.                                   1,20

Cable company                                         20%                                    0,80

Real estate                                                 15%                                     1,30

International special project                     35%                                    0,60

What is the holding company’s beta?

1. 0,41

2. 0,52

3. 0,72

4. 0,93