Question $1(1$ point$)$

What is the speed of sound in soft tissue?

a$)1\mathrm{.}54\frac{m}{s}$

b$)1540c\frac{m}{s}$

c$)1\mathrm{.}54c\frac{m}{m}$icrosecond

d$)1540\frac{m}{m}$icrosecond