Block A, mass $250\mathrm{g}$, sits on top of block B, mass $2.0\mathrm{kg}$. The coefficients of static and kinetic friction between blocks A and B are 0.34 and 0.23, respectively. Block B sits on a frictionless surface. What is the maximum horizontal force that can be applied to block B, without block A slipping?

• A. $0.83\mathrm{N}$
• B. $2.4\mathrm{N}$
• C. $5.1\mathrm{N}$
• D. $6.7\mathrm{N}$
• E. $7.5\mathrm{N}$