Blockchain Quiz!
5 winners will get $30 USDT each!
How to participate:
1⃣ Follow @Four_FORM_
2⃣ ❤ + RT
3⃣ Drop your answer & tag 3 friends
Question:
Each blockchain block contains the hash of:
A. The next block
B. The previous block
C. A random block
D. Itself
GOOD LUCK!
#Four #FourCommunity #Giveaway