In the case of motion of a fluid in a tube where area of cross section is maximum

a) velocity is maximum

b) pressure is maximum

c) velocity is minimum

d) pressure is minimum

According to the continuity equation, $\mathrm{AV}=\mathrm{constant}$, 

where A stands for area, and V for velocity. Velocity would be little if area were at its maximum.

Bernoulli's equation states that

$\mathrm{P}+\frac{1}{2}{\mathrm{\rho V}}^2+\mathrm{\rho gh}=\mathrm{constant}$

When velocity is at its minimum, pressure is at its maximum.

Hence the correct answer is b,c are correct.