The Excel file Correlation Matrix Data contains monthly return data for four (4) stocks.

Monthly Return Data for Four Stocks
Month	IBM	EPB	TEVA	HPQ
1	4.71%	-2.32%	7.45%	4.98%
2	-2.26%	-2.51%	-1.77%	-7.14%
3	-12.17%	-8.29%	2.06%	-6.56%
4	-5.97%	-6.60%	3.84%	-5.31%
5	6.20%	5.07%	10.67%	-6.23%
6	-18.01%	6.98%	-0.58%	3.93%
7	9.19%	7.68%	2.40%	4.12%
8	-0.27%	-5.62%	-1.74%	-3.23%
9	0.60%	7.18%	0.98%	4.09%
10	8.19%	4.00%	5.03%	4.72%
11	-4.63%	6.50%	8.22%	-8.27%
12	-6.09%	5.37%	-3.98%	0.15%
13	-1.46%	3.22%	3.45%	-9.28%
14	-2.34%	-4.04%	1.07%	-5.42%
15	-3.42%	-6.77%	2.58%	-3.32%
16	-30.09%	-0.33%	4.46%	-11.48%
17	16.97%	8.53%	-4.79%	9.30%
18	4.92%	5.15%	-1.70%	-2.56%
19	-7.72%	7.53%	5.52%	1.87%
20	8.27%	-1.11%	2.84%	11.19%
21	-5.51%	6.91%	-4.98%	0.54%
22	3.83%	1.13%	-1.45%	1.57%

a.Compute the Correlation Matrix for the four (4) stocks.

b. All other things being equal, which pair of stocks would reduce portfolio risk the most?

c.All other things being equal, which pair of stocks would reduce portfolio risk the least?