An Object Travels Halfway Around a Circle at a Constant $|\vec{v}|$

Multiple Choice

An object travels halfway around a circle at a constant instantaneous speed $|\vec{v}|$ . What is the magnitude $|\vec{\psi}|$ of its average velocity during this time interval?

A) $|\vec{v}|$
B) $1.41|\vec{v}|$
C) $1.57|\vec{v}|$
D) $|\vec{v}| / 1.41$
E) $|\vec{v}| / 1.57$
F) Some other multiple of $|\vec{v}|$ (specify)
G) We do not have enough information to answer.