Hey there, Guest!
So, there are 8 women of different heights.
Let the eight women be A, B, C, D, E, F, G, and H.
We can assume that A is taller than B and A decides to shake hands with B, B will refuse because A is taller. If this happens across the eight women, then there will be 0 handshakes.
If this assumption is taken out, we have 7+6+5+4+3+2+1 = 28
If you still do not get it, you can look at the answer that Guest #1 copied from Brainly.
Hope this helped! :)
( ゚д゚)つ Bye