Answer: a) Sales
Explanation:
Fulfillment is defined as the mechanism in which orders are received, made ready and then delivered to the consumer. Execution of order from preparing stage to shipping to customer is done through fulfillment.
Sales department of organization is the section that holds the process of receiving orders from customer, preparing the good or product and sending it to recipient.
Other options are incorrect because accounting department,warehouse department and purchasing section are not the fulfillment department/block of any organization .Thus, the correct option is option(a).
"The mass of Substance C is five times the mass of Substance B", the given statement is correct.
Answer: Option D
<u>Explanation:</u>
As Jessie added 16 gm. of Substance A to 4 gm. of Substance B Obtained certain amount of Substance C which can be calculated as follows:
amount of Substance C = Substance A + Substance B = 16 + 4 = 20 gm
Therefore, 20 gram of Substance C was obtained. Here, fourth statement is correct which says the mass of Substance C ifs five times the mass of Substance B to justify this, see the below:

2 and 3 represents main ideas from the article
The Prime Minister believes his idea followed the GDP of European nations will continue to grow.
Option C
<h3><u>Explanation:</u></h3>
Any country which has a large proportion of educated individuals is bound to prosper more. Globalization and International trade are some of the major sources of income for a country but, economies of countries compete with each other. An educated country will have comparatively more competitive advantages.
An educated nation will have a balanced economy in various industries. A country's workforce determines how well the country's economy performs. The Prime minister is suggesting a very good practice to provide education to children. Children are the future of any nation. The GDP of European nations will thus grow more.