In which direction do stars appear to move in the sky?

The agency responsible for the development of space science programmes in India is :

X is a group of stars which is visible during the summer season in the early part of the night. It can be seen clearly in .the month of April in the northern part of the sky. It resembles a bowl with a handle. It also resembles a big kite with a tail.

(a) What is the general name of groups of stars like X?

(b) Write any two names of X.

(c) Is it a part of our Solar System?

(d) How many bright stars are usually observed in X?

(e) Which famous star can be located in the sky with the help of X?

Why do they appear to move in this direction?

The number of main stars in constellation A is 5, in constellation B is 7 in constellation C can be 7 or 8, whereas in constellation D is usually 9. Name the constellations A, B, C and D.