Maple Construction Ltd. (Maple) sells construction materials. Greenstar Builders Inc. (Greenstar) is a developer and home builder. Maple and Greenstar have signed a contract that states that Maple shall deliver 1000 custom designed window frames to Greenstar by July 15 and Greenstar shall pay Maple $150,000.

On July 15, the window frames were not delivered to Greenstar because Pan-Pacific Windows Ltd.(Pan-Pacific), the manufacturer of the window frames, experienced delayd in manufacturing the windows. As a result, Greenstar`s housing project was delayed, causing Greenstar to lose a significant amount of money.

Who can Greenstar sue for the loss it suffered from the late delivery of the window frames? Choose the most accurate answer and explain and support your choice with reference to the applicable law and applying it to the facts:

a) Greenstar can only sue Pan-Pacific because it was Pan-Pacific`s fault that the windows were delivered late.

b) Greenstar can sue Maple and Pan-Pacific because they both breached their promises to deliver the windows by July 15.

c) Greenstar can sue Maple but not Pan-Pacific, because only Maple is a party to Greenstar`s contract.

d) None of the above

PLEASE ANSWER FROM A LEGAL PERSPECTIVE BASING YOUR RESPONSE ON THE NATURE OF CONTRACTS, CONSIDERATION AND PRIVITY.