Read the following announcement and mark the letter A, B, C or D to indicate the correct option

ENERGY SOURCES AWARENESS DAY
Join us this Saturday for our special Energy Sources Awareness Day!
Visitors are encouraged to learn about different energy sources and how they (1) _______our world.
We will provide fun activities and informative displays (2)_________ renewable and non-renewable energy.
(3)_________ sure to arrive early to enjoy interactive workshops and discussions.
Together, we can make (4) ________ big difference by using clean energy and saving resources. Let’s work towards a greener future!