Laddered portfolio vs barbell portfolio

CFA Level III
#1

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The q is

Based on Exhibit 2, relative to Portfolio C, Portfolio B:
A. has higher cash flow reinvestment risk.
B. is a more desirable portfolio for liquidity management.
C. provides less protection from yield curve shifts and twists.
The Answer is B.

Why is the answer not A as well? I get that its B and that’s fine but laddered portfolios can have higher cash flow reinvestment risk.

#2

Laddered portfolio offers more maturity dates to mitigate the reinvestment risk. Because bonds maturing when interest rates are low may be offset by bonds maturing when rates are high.