There are two welldiversified portfolios in the economy, portfolio A and portfolio B. Portfolio A has beta of 1.5 and expected return of 14%, while portfolio B has beta 0.9 and expected return of 11.4%. If the expected return on the market is 12% and riskfree rate is 6%, is there an arbitrage opportunity? If so, show your arbitrage strategy.There are two welldiversified portfolios in the economy, portfolio A and portfolio B. Portfolio A has beta of 1.5 and expected return of 14%, while portfolio B has beta 0.9 and expected return of 11.4%. If the expected return on the market is 12% and riskfree rate is 6%, is there an arbitrage opportunity? If so, show your arbitrage strategy. ( Please show steps, much thanks.)