Answer:
8
Step-by-step explanation:
Data provided in the question: 
 The market capitalization rate on the stock = 14% 
 Expected ROE = 15% 
 Expected EPS = $56
 Firm's plowback ratio = 60% 
 Based on the above information 
The computation of the P/E ratio is shown below
But before that, we need to do the following calculations
 As we know that
Payout ratio = (1 - plowback ratio ) 
 = (1 - 0.6 )
 = 0.4 
 Now 
Growth rate = ROE × Retention ratio 
 = 0.15 × 0.60 
 = 9%
 And, 
Dividend for next period i.e D1 is 
= EPS × Payout ratio 
 = $6 × 0.4 
 = $2 .4
So,
 Current price = D1 ÷ ( Market capitalization rate - Growth rate ) 
 = $2.4 ÷ ( 0.14 - 0.09 ) 
= $48 
And, finally 
P/E ratio is 
= (Current price) ÷ (EPS) 
 = $48 ÷ $6
 = 8