أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
A. An activity of a project is denoted by an arrow on the net work
B. The tail of the arrow indicates the start of the activity
C. The head of the arrow indicates the end of the activity
D. The arrows are drawn to scale from left to right
E. Each activity consumes a given time.
D. The arrows are drawn to scale from left to right
Answer will be C ......................................................