Sort:  

none of the above?

Correct answer is A option

oooh! i thought it was due to damaged vein walls,.., happens if you are a bit overweight and sit a lot.. .. but, A it is then!

Coin Marketplace

STEEM 0.18
TRX 0.16
JST 0.029
BTC 76015.33
ETH 2892.38
USDT 1.00
SBD 2.58